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Change in velocity per amount of fuel
Specific impulse (usually abbreviated as Isp) is a physical quantity defined as the ratio of change in momentum (impulse) to the mass used, usually fuel
Specific_impulse
Electrothermal thruster in development
The Variable Specific Impulse Magnetoplasma Rocket (VASIMR) is an electrothermal thruster under development for possible use in spacecraft propulsion.
Variable Specific Impulse Magnetoplasma Rocket
Variable_Specific_Impulse_Magnetoplasma_Rocket
Integral of a comparatively larger force over a short time interval
In classical mechanics, impulse (symbolized by J or Imp) is the change in momentum of an object. It is most often used to describe forces which act over
Impulse_(physics)
Thrust produced by ejecting a jet of fluid
than continuous, at least when the Reynolds number is greater than 6. Specific impulse (usually abbreviated Isp) is a measure of how effectively a rocket
Jet_propulsion
American space company
with propellant. It uses Saiph bipropellant thrusters which have a specific impulse (Isp) of 290 s. It can impart a delta-v of from 500 m/s with 300 kg
Impulse_Space
Non-airbreathing engine used to propel a missile or vehicle
thrust, but are the least propellant-efficient (they have the lowest specific impulse). For thermal rockets, pure hydrogen, the lightest of all elements
Rocket_engine
System-specific Impulse, Issp is a measure that describes performance of jet propulsion systems. A reference number is introduced, which defines the total
System-specific_impulse
Vehicle propelled by ejection of gases
second. An equivalent measure, the net impulse per weight unit of propellant expelled, is called specific Impulse, I s p {\displaystyle I_{sp}} , and this
Rocket
Form of electric spacecraft propulsion
the amount of specific power required compared to chemical rockets. Ion thrusters are therefore able to achieve high specific impulses. The drawback of
Ion_thruster
SpaceX family of liquid-fuel rocket engines
increasing propellant mass per volume as well as engine performance. Specific impulse is increased, and the risk of cavitation at inputs to the turbopumps
SpaceX_Raptor
Type of propelling nozzle
been proposed for some types of propulsion (for example, Variable Specific Impulse Magnetoplasma Rocket, VASIMR), in which the flow of plasma or ions
Rocket_engine_nozzle
Type of rocket engine
a high specific impulse, and a high specific impulse per unit volume of propellant should be considered. Overview of the specific impulses of propellants
Cold_gas_thruster
Jet engine where combustion takes place in supersonic airflow
{\displaystyle I_{\text{sp}}} is the specific impulse h PR {\displaystyle h_{\text{PR}}} is fuel heat of reaction Specific impulse is often used as the unit of
Scramjet
Rocket engine in SpaceX Falcon launch vehicles
sea level and 420 kN (95,000 lbf) in vacuum, and performing with a specific impulse of 261 s (2.56 km/s) at sea level and 303 s (2.97 km/s) in vacuum.
SpaceX_Merlin
US Nuclear thermal rocket engine project (1956–1973)
that NERVA had the designed specific impulse of 811 seconds (7.95 km/s); solid-propellant rockets have a maximum impulse of around 300 seconds (2.9 km/s)
NERVA
Type of electrostatic ion thruster
energy input rate, the thruster could produce a thrust of 2.5 N. The specific impulse (a measure of fuel efficiency), could reach 19,300 s at an exhaust
Dual-Stage_4-Grid
Proposed Soviet rocket engine
388.4 kg/s (81.4% of propellant mass) of oxygen, achieving a with a specific impulse of 415s In high-altitude mode two, the preburner used to pump kerosene
RD-701
Rocket with a motor that uses solid propellants
by using nitrocellulose, improving the overall specific impulse. The aluminium improves specific impulse as well as combustion stability. High performing
Solid-propellant_rocket
Chemical or mixture used in a rocket engine
the propellants by their exhaust velocity relative to the rocket (specific impulse). A rocket can be thought of as being accelerated by the pressure of
Rocket_propellant
Soviet super heavy-lift launch vehicle (1965–1972)
a higher specific impulse than the gas-generator cycle Rocketdyne F-1 despite the use of UDMH/N2O4 propellants with lower potential impulse. The F-1 engine
N1_(rocket)
Russian rocket engine
high-frequency vibrations inside the combustion chambers and increasing specific impulse by about 5 seconds (0.049 km/s), or five percent. Used on the Soyuz-FG
RD-107
Nuclear spacecraft propulsion technology
with it and converting thermal energy to coherent kinetic energy. The specific impulse (Isp) of the engine is set by the speed of the exhaust stream. That
Nuclear_thermal_rocket
Space propulsion system
electrostatic ion thruster called HiPEP which will have higher efficiency, specific impulse, and a longer lifetime than NSTAR.[citation needed] In 2006, Aerojet
Gridded_ion_thruster
Part of the Redstone rocket family
Rocketdyne A-7 engine Thrust, 83,000 lbf (370 kN) burning time, 155 s specific impulse, 235 s (2.30 kN·s/kg) propellants, liquid oxygen, as oxidizer, and
Jupiter-C
Liquid-fueled rocket engine
has a specific impulse of 311 s (3.05 km/s), while the vacuum optimized-version produces 25.8 kN (5,800 lbf) of thrust and has a specific impulse of 343 s
Rutherford_(rocket_engine)
Hypothetical spacecraft propulsion through continuous nuclear explosions for thrust
Space Shuttle main engine. With refinements a theoretical maximum specific impulse of 100,000 s (980 km/s) (1 MN·s/kg) might be possible. Thrusts were
Nuclear_pulse_propulsion
Russian heavy-lift launch vehicle
thrust 1,920 kN (430,000 lbf) Total thrust 7,680 kN (1,730,000 lbf) Specific impulse 310.7 s (3.047 km/s) Burn time 214 seconds Propellant LOX / RP-1 First
Angara_A5
Liquid fuel rocket engine
stated that it had a thrust of 1 MN (220,000 lbf) and 320 seconds of specific impulse. The same day, the Neutron page on Rocket Lab's website was updated
Archimedes_(rocket_engine)
Indian expendable medium-lift launch vehicle, developed by ISRO
Vikas engines uses regenerative cooling, providing improved weight and specific impulse compared to earlier Indian rockets. Each Vikas engine can be individually
LVM3
Rocket engine used on the Saturn V rocket
sea level liftoff): 1,553,200 lbf (6.909 MN) Burn time: 159 seconds Specific impulse: 264.72 s (2.5960 km/s) Mixture ratio: 2.2674 S-IC total sea level
Rocketdyne_F-1
Chinese super-heavy rocket in development
000 lb) Powered by 30 × YF-215 Maximum thrust 60 MN (13,000,000 lbf) Specific impulse 330 s (3.2 km/s) Propellant LOX / CH4 Second stage Diameter 10.6 m
Long_March_9
Engine where combustion is pulsed instead of continuous
propulsion, but usually have a poor compression ratio, and hence give a low specific impulse. The two main types of pulsejet engines use resonant combustion and
Pulsejet
Rocket engine that uses liquid fuels and oxidizers
have reasonably high density and their combustion products have high specific impulse (Isp). This allows the volume of the propellant tanks to be relatively
Liquid-propellant_rocket
Mathematical equation describing the motion of a rocket
{\displaystyle I_{\text{sp}}g_{0}} ) I sp {\displaystyle I_{\text{sp}}} is the specific impulse in dimension of time; g 0 {\displaystyle g_{0}} is standard gravity;
Tsiolkovsky_rocket_equation
Fuel efficiency of an engine design with respect to thrust output
of thrust (newtons, or N), hence thrust-specific. This figure is inversely proportional to specific impulse, which is the amount of thrust produced per
Thrust-specific fuel consumption
Thrust-specific_fuel_consumption
Chinese super-heavy carrier rocket
thrust SL: 17,500 kN (3,900,000 lbf) vac: 19,544 kN (4,394,000 lbf) Specific impulse SL: 301.6 s (2.958 km/s) vac: 337 s (3.30 km/s) Burn time 173 seconds
Long_March_10
Large Soviet rocket engine that used hypergolic propellants
burned in the combustion chamber. This allowed the engine to achieve a specific impulse of 301 s (2.95 km/s) at the Earth's surface. Engine testing was underway
RD-270
Method used to accelerate spacecraft
called specific impulse. This is a measure of the amount of impulse that can be obtained from a fixed amount of reaction mass. The higher the specific impulse
Spacecraft_propulsion
Liquid form of rocket propellants
The highest specific impulse chemical rockets use liquid propellants (liquid-propellant rockets). They can consist of a single chemical (a monopropellant)
Liquid_rocket_propellant
Hydrogen-oxygen rocket engine for the Delta IV
were a significantly lower thrust-to-weight ratio and a 10% lower specific impulse compared to the SSME. The benefit of this simplicity is the RS-68's
RS-68
Rocket that burns 3 propellants at once or 2 fuels with an oxidizer, sequentially
respectively. Tripropellant systems can be designed to have high specific impulse and have been investigated for single-stage-to-orbit designs. While
Tripropellant_rocket
Proposed spacelaunch method
specific impulse tends to be a design goal when corresponding to the most energy released from reacting propellants). Although the specific impulse of
Mass_driver
Discontinued US research program on the viability of nuclear pulse propulsion
the near-term. The Orion concept offered both high thrust and high specific impulse, or propellant efficiency: 2,000 pulse units (Isp) under the original
Project Orion (nuclear propulsion)
Project_Orion_(nuclear_propulsion)
Japanese-American rocket stage
Rocketdyne, which features an extendable carbon–carbon nozzle to improve specific impulse. The DCSS was designed by the National Space Development Agency of
Delta_Cryogenic_Second_Stage
Aircraft engine that produces thrust by emitting a jet of gas
measured by specific fuel consumption, specific impulse, or effective exhaust velocity. They all measure the same thing. Specific impulse and effective
Jet_engine
Japanese hydrolox staged combustion rocket engine
000 lbf) Rated thrust (vacuum): 1,074 kN (241,000 lbf) Specific impulse (sea level): Specific impulse (vacuum): 429 seconds (4.21 km/s) Long nozzle: Rated
LE-7
European small-lift launch vehicle
mass 141,634 kg (312,250 lb) Maximum thrust 4,323 kN (972,000 lbf) Specific impulse 279 s (2.74 km/s) Burn time 135.7 seconds Propellant HTPB / AP / Al
Vega_C
Topics referred to by the same term
Look up impulse or impulsive in Wiktionary, the free dictionary. Impulse or Impulsive may refer to: Impulse (physics), the change of momentum of an object;
Impulse
Type of electric propulsion system
ions in the plume. The Hall-effect thruster is classed as a moderate specific impulse (1,600 s) space propulsion technology and has benefited from considerable
Hall-effect_thruster
Rockets using antimatter as their power source
{M_{0}}{M_{1}}}} ), the velocity change ( Δ v {\displaystyle \Delta v} ) and specific impulse ( I sp {\displaystyle I_{\text{sp}}} ) no longer holds due to the mass
Antimatter propulsion spacecraft
Antimatter_propulsion_spacecraft
Type of electric propulsion
have a much higher specific impulse (Isp) than most other types of rocket technology. The VASIMR thruster can be throttled for an impulse greater than 12000 s
Plasma_propulsion_engine
Most common type of rocket, used to launch satellites
sort. One of the most common measures of rocket efficiency is its specific impulse, which is defined as the thrust per flow rate (per second) of propellant
Multistage_rocket
Reusable superheavy-lift general-purpose launch vehicle
are 3D printed. A Raptor 2 engine produces 2.3 MN (520,000 lbf) at a specific impulse of 327 seconds (3.21 km/s) at sea level and 350 seconds (3.4 km/s)
SpaceX_Starship
Rocket under development by Firefly Aerospace and Northrop Grumman
provide 7,161 kN (1,610,000 lbf) of thrust and has 305 seconds of specific impulse (Isp). This stage is designed to be reusable, though a de-rated and
Eclipse_(rocket)
Soviet rocket engine
powerful LOX/RP-1 powered rocket engines ever built, noted for its high specific impulse and low structural mass. The NK-33 was an improved version of the earlier
NK-33
Soviet rocket engine
similarities and differences. The RD-0120 achieved a slightly higher specific impulse and combustion chamber pressure with reduced complexity and cost (but
RD-0120
Space Shuttle and SLS main engine
reliability, safety, and maintenance load. The engine produces a specific impulse (Isp) of 452 seconds (4.43 kN⋅s/kg) in vacuum, or 366 seconds (3.59 kN⋅s/kg)
RS-25
Proposed hybrid ramjet and rocket engine
better than the RB545 engine or scramjets. Fuel efficiency (known as specific impulse in rocket engines) peaks at about 3500 seconds within the atmosphere
SABRE_(rocket_engine)
Russian and Soviet rocket family
kilonewtons (188,500 lbf) In vacuum: 1,021.3 kilonewtons (229,600 lbf) Specific impulse: At sea level: 262 seconds (2.57 km/s) In vacuum: 319 seconds (3.13 km/s)
Soyuz_(rocket_family)
Gas turbine used to spin a shaft
performance Overall pressure ratio Propulsive efficiency Specific impulse Thrust Thrust lapse Thrust specific fuel consumption Thrust to weight ratio Variable
Turboshaft
Soviet rocket engine design
powerful LOX/kerosene rocket engines when it was built, with a high specific impulse and low structural mass. It was intended for the ill-fated Soviet N-1
NK-15
Launch system that only uses one rocket stage
SSTO vehicles. When burned with oxygen, hydrogen gives the highest specific impulse of any commonly used fuel: around 450 seconds, compared with up to
Single-stage-to-orbit
Expendable launch system used by NASA
strap-on boosters) Maximum thrust 5,339 kN (1,200,000 lbf) (each booster) Specific impulse 266 s (2.61 km/s) Burn time 117 seconds First stage – Core First Stage
Titan_IIIE
Type of engine
ends up as kinetic energy of the exhaust.[citation needed] If the specific impulse ( I s p {\displaystyle I_{sp}} ) is fixed, for a mission delta-v, there
Reaction_engine
Quotient of a quantity by mass
material Specific humidity, mass of water vapour per unit mass dry air Specific impulse, impulse (momentum change) per unit mass of propellant Specific modulus
Specific_quantity
Predecessor to the RS-25 thrust machine
000 lbf) of thrust during flight. The engine was designed to produce a specific impulse (Isp) of 451 seconds (4.42 km/s) in a vacuum, or 280 seconds (2.7 km/s)
HG-3_(rocket_engine)
First South Korean orbital launch vehicle developed domestically
efficiency in vacuum with a specific impulse of 315.4 seconds. The third stage booster uses one KRE-007 engine with a specific impulse of 325.1 seconds. Both
Nuri_(rocket)
Expendable launch system by SpaceX
oxygen providing 410 kilonewtons (92,000 lbf) of sea-level thrust and a specific impulse of 245 s (vacuum Isp 290 s). The first stage burns to depletion, taking
Falcon_1
Rocket driven by nuclear fusion power
energy to provide propulsion. Fusion's main advantage is its very high specific impulse, while its main disadvantage is the (likely) large mass of the reactor
Fusion_rocket
Class of Indian medium-lift expendable launch vehicles, developed by ISRO
Maximum thrust 760 kN (170,000 lbf) Total thrust 3,040 kN (680,000 lbf) Specific impulse 262 s (2.57 km/s) Burn time 154 seconds Propellant N2O4 / UDMH First
Geosynchronous Satellite Launch Vehicle
Geosynchronous_Satellite_Launch_Vehicle
Sugar-based rocket propellant
recorded as having specific impulses of up to 128 seconds. Xylitol and KNO3 based rocket propellants are capable of a specific impulse of ~100 seconds.
Rocket_candy
Rocket engine operation method
rocket engine power cycles is high fuel efficiency, measured through specific impulse, while its main disadvantage is engineering complexity. Typically,
Staged_combustion_cycle
Class of Indian partially reusable launch vehicles under development by ISRO
000 lb) each Powered by Solid S200 Maximum thrust 5,151 kN (525.3 tf) Specific impulse 274.5 seconds (2.692 km/s) (vacuum) Burn time 128 s Propellant HTPB
Next Generation Launch Vehicle
Next_Generation_Launch_Vehicle
American liquid rocket engine
Specific impulse: 282 s. Burn time: 247 s. Rocketdyne S-3: First flight: 1958 Vehicles: Juno II, Saturn A-2 Thrust: 667.2 kN (149993 lbf). Specific impulse:
Rocketdyne_S-3D
Aircraft propulsion system efficient at a range of speeds higher and lower than sound's
airspeed. In effect the engine can operate at any point along the specific impulse (Isp) curve - high Isp at low speed or low Isp at high speed. It is
Variable_cycle_engine
American aerospace company
Alpha rocket. It produces 184 kilonewtons (41,000 lbf) of thrust and a specific impulse of 295.6 seconds (2.899 km/s). It is powered by RP-1 and liquid oxygen
Firefly_Aerospace
Measure of rocket performance
exhaust velocity related to the specific impulse by: I s p = c g 0 {\displaystyle I_{sp}={\frac {c}{g_{0}}}} . Specific impulse and effective exhaust velocity
Characteristic_velocity
Chinese medium to heavy-lift launch vehicle
000 lbf) at sea level and 1,340 kN (300,000 lbf) in vacuum of thrust. Its specific impulse is 300 s (2.9 km/s) at sea level and 335 s (3.29 km/s) in vacuum. Each
Long_March_7
Turbojet engine component
diluted with air from the compressor to bring the gas temperature down to a specific value, known as the Turbine Entry Temperature (TET) (1,570 °F (850 °C))
Afterburner
Highly refined form of kerosene used as rocket fuel
it offers a lower specific impulse, but can be stored at ambient temperatures, has a lower explosion risk, and although its specific energy is lower, its
RP-1
Single-part rocket propellant
noted the specific impulse of monopropellants is lower than bipropellants and can be found with the Air Force Chemical Equilibrium Specific Impulse Code tool
Monopropellant
Russian medium-lift launch rocket
redesigned injectors that improved combustion efficiency and increased specific impulse by approximately 5 seconds (0.049 km/s), as well as the new RD-0124
Soyuz-2
Colorless flammable liquid with an ammonia-like odor
has 150 times lower vapor pressure, the same specific impulse, and a 35% higher density specific impulse than neat hydrazine. HPB-G28 can be used with
Hydrazine
Type of rocket engine
an average thrust of 518 N (116 lbf) and delivering 290 seconds of specific impulse. Rotating combustion also created a torque of 0.26 N·m, so a S-shaped
Rotating_detonation_engine
Vehicle propulsion using electromagnetic fields
studied as such electromagnetic propulsion offers high thrust and high specific impulse at the same time, and the propellant would last much longer than in
Magnetohydrodynamic_drive
Expendable launch system used by the US Air Force
(IV-A) – UA1207 No. boosters 2 Maximum thrust 14.234 MN (3,200,000 lbf) Specific impulse 272 seconds (2667 N·s/kg) Burn time 120 seconds Propellant PBAN Boosters
Titan_IV
Type of spacecraft propulsion using electrical energy to accelerate propellant
fields. Their principal advantage over chemical rockets is much higher specific impulse, meaning greater propellant efficiency, but the limited electrical
Spacecraft electric propulsion
Spacecraft_electric_propulsion
Four-stage American expendable launch vehicle (1958)
additional solid fuel stages based on the Sergeant missile to provide the added impulse to achieve orbit. The fourth stage was mounted on top of the "tub" of the
Juno_I
Form of electrically powered spacecraft propulsion
[citation needed] As with other electric propulsion variations, both specific impulse and thrust increase with power input, while thrust per watt drops.
Magnetoplasmadynamic_thruster
Type of spacecraft
of a multistage rocket. Antimatter rockets would offer the highest specific impulse of any known rocket technology and thus would most easily be able to
Relativistic_rocket
Partially-reusable medium-lift launch vehicle by SpaceX
to purchase several operational flights once specific capabilities were demonstrated. Milestone-specific payments were provided under the Commercial Orbital
Falcon_9
(128 psi) and a nozzle expansion of 153.8 that enables it to achieve a specific impulse of 302 s (2.96 km/s). It is rated for 30 starts with a total firing
KTDU-80
Rocket engine
after the conclusion of the Apollo program. The engine produced a specific impulse (Isp) of 421 seconds (4.13 km/s) in a vacuum (or 200 seconds (2.0 km/s)
Rocketdyne_J-2
High efficiency engine for space travel
Research Organisation (ISRO) and NASA. SEP has a significantly higher specific impulse than chemical rocket propulsion, thus requiring less propellant mass
Solar_electric_propulsion
Reusable medium-lift launch vehicle
Maximum thrust SL: 3,110 kN (700,000 lbf) vac: 3,470 kN (780,000 lbf) Specific impulse SL: 310 s (3.0 km/s) vac: 345 s (3.38 km/s) Propellant CH4 / LOX Second
Stoke_Space_Nova
Family of rocket stages which can be used as a space tug
featuring a fixed nozzle extension and modest improvements in thrust and specific impulse, offering minor improvements to payload capacities. In February 2026
Centaur_(rocket_stage)
Aerospike rocket engine by Rocketdyne
000 lbf) Chamber pressure 58 bar (840 psi) Specific impulse, vacuum 439 seconds (4.31 km/s) Specific impulse, sea-level 339 seconds (3.32 km/s) Dimensions
Rocketdyne_XRS-2200
Supersonic atmospheric jet engine
thrust below about half the speed of sound, and they are inefficient (specific impulse of less than 600 seconds) until the airspeed exceeds 1,000 kilometres
Ramjet
NASA crewed Moon landing spacecraft (1969–1972)
propellants: Aerozine 50 fuel / Dinitrogen tetroxide (N2O4) oxidizer RCS specific impulse: 290 s (2.8 km/s) APS propellant mass: 5,187 lb (2,353 kg) stored in
Apollo_Lunar_Module
US project, 1987–1991, to develop nuclear thermal rocket engines
only 1650 kg (less than 1⁄4 the mass), while further improving the specific impulse from 930 to 1000 seconds.[citation needed] In 1983, the Strategic Defense
Project_Timberwind
SPECIFIC IMPULSE
SPECIFIC IMPULSE
Girl/Female
Hindu, Indian, Malayalam, Marathi, Sanskrit, Sikh, Tamil
Aim; Destination; Who has a Specific Goal Everywhere; Target
Female
Egyptian
, impulse, motion.
Surname or Lastname
English
English : habitational name from any of the numerous places named in Old English as ‘long ford’, from lang, long ‘long’ + ford ‘ford’, except for Langford in Nottinghamshire, which is named with an Old English personal name Landa or possibly land, here used in a specific sense such as ‘boundary’ or ‘district’, with the same second element.
Girl/Female
American, Australian, Christian, Nigerian
Flaxen; Pacific Islander
Surname or Lastname
German
German : eastern variant of Drescher.English : from an agent derivative of Middle English dressen ‘to arrange’ (in certain specific senses), possibly an occupational name for someone who dressed or finished cloth. Compare Fuller.
Boy/Male
Hindu
No specific meaning. but he was considered to be the best disciple in indian mythology
Girl/Female
Arabic
Precious; Lord of Specific Wood
Boy/Male
Tamil
Prahalathan | பà¯à®°à®¹à®²à®¾à®¤à®¨
No specific meaning. but he was considered to be the best disciple in indian mythology
Prahalathan | பà¯à®°à®¹à®²à®¾à®¤à®¨
Boy/Male
Tamil
Hayagriv | ஹயாகà¯à®°à®¿à®µ
One of krishnas incarnations. specific to education
Hayagriv | ஹயாகà¯à®°à®¿à®µ
Boy/Male
Hindu
One of krishnas incarnations. specific to education
Boy/Male
Indian, Sanskrit
Calmed; Pacific Sea
Surname or Lastname
English (chiefly Kent and Sussex)
English (chiefly Kent and Sussex) : occupational name for a designer or engineer, from a Middle English reduced form of Old French engineor ‘contriver’ (a derivative of engaigne ‘cunning’, ‘ingenuity’, ‘stratagem’, ‘device’). Engineers in the Middle Ages were primarily designers and builders of military machines, although in peacetime they might turn their hands to architecture and other more pacific functions.German : from the Latin personal name Januarius (see January 1). Jänner is a South German word for ‘January’, and so it is possible that this is one of the surnames acquired from words denoting months of the year, for example by converts who had been baptized in that month, people who were born or baptized in that month, or people whose taxes were due in January.
Boy/Male
Tamil
Impulse
Surname or Lastname
English
English : habitational name from Brill in Buckinghamshire, named with the Celtic element bre- ‘hill’ + Old English hyll also ‘hill’.North German and Dutch : habitational name from any of various places in northwestern Germany and the Netherlands named Brill, from Middle Low German brūl, bröil ‘wet lowland’. Compare German Bruehl.German : from Middle Low German brill ‘eyeglasses’, hence a metonymic occupational name for a maker of spectacles or perhaps a nickname for someone who wore them.Jewish (Ashkenazic) : acronymic surname from Hebrew ben rabi ‘son of …’ and the first letter of each part of a Yiddish double male personal name, most likely Yude (Juda) Leyb. Many Ashkenazic family names beginning with Br- and Bar- are probably of acronymic origin, but without detailed evidence from family histories it is impossible to specify the personal name from which each is derived.
Boy/Male
Indian
Impulse
Surname or Lastname
English
English : patronymic from Deemer.French : habitational name apparently associated with a specific domain; the source is unclear, because of the wide range of local variants.
SPECIFIC IMPULSE
SPECIFIC IMPULSE
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
Imbued with Light
Girl/Female
Tamil
Kavyasree | காவà¯à®¯à®¸à¯à®°à¯€
Poetry having good characters, Poetry in motion
Biblical
Jahzeiah, the vision of the Lord;Jehovah reveals;Jehovah sees;
Boy/Male
Arabic, Muslim, Pashtun
Loving and Caring
Boy/Male
Scottish
Salmon.
Boy/Male
Italian
Manly; brave.Andrew.
Boy/Male
Gujarati, Hebrew, Hindu, Indian, Malayalam, Marathi, Punjabi, Sikh, Tamil
Lord Rama; God; Supreme Spirit
Surname or Lastname
English
English : habitational name from any of various places called Dunton. Most (for example those in Bedfordshire, Essex, Leicestershire, Norfolk, and Warwickshire) are named from Old English dūn ‘hill’ (see Down 1) + tūn ‘enclosure’, ‘settlement’. One in Buckinghamshire probably has as its first element the Old English personal name Dudda (see Dodd).
Girl/Female
English American
Field of hay. Usually a surname.
Male
Greek
(Ἡλί) Greek form of Hebrew Eliy, HELI means "ascending." In the New Testament bible, this is the name of the father of Mary's husband Joseph.
SPECIFIC IMPULSE
SPECIFIC IMPULSE
SPECIFIC IMPULSE
SPECIFIC IMPULSE
SPECIFIC IMPULSE
n.
The specific sum levied or assessed.
n.
Counseling to perform a specific illegal act.
a.
Specifying; definite, or making definite; limited; precise; discriminating; as, a specific statement.
a.
Specific.
adv.
In a specific manner.
a.
Of or pertaining to a species; characterizing or constituting a species; possessing the peculiar property or properties of a thing which constitute its species, and distinguish it from other things; as, the specific form of an animal or a plant; the specific qualities of a drug; the specific distinction between virtue and vice.
n.
The quality or state of being specific.
a.
Anything having peculiar adaption to the purpose to which it is applied.
n.
A specific remedy. See Specific, a., 3.
n.
An instrument for ascertaining the specific gravity of liquids.
v. t.
Proper station; specific place; assigned position; special location.
imp. & p. p.
of Specify
n.
The quality of being specific.
a.
Causing dryness.
a.
Exerting a peculiar influence over any part of the body; preventing or curing disease by a peculiar adaption, and not on general principles; as, quinine is a specific medicine in cases of malaria.
v. t.
To mention or name, as a particular thing; to designate in words so as to distinguish from other things; as, to specify the uses of a plant; to specify articles purchased.
a.
Of or pertaining to peace; suited to make or restore peace; of a peaceful character; not warlike; not quarrelsome; conciliatory; as, pacific words or acts; a pacific nature or condition.
n.
A specific sum of money
p. pr. & vb. n.
of Specify
n.
An instrument for ascertaining the specific gravity of bodies.