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Guidance and navigation computer used in Apollo spacecraft
The Apollo Guidance Computer (AGC) is a digital computer produced for the Apollo program that was installed on board each Apollo command module (CM) and
Apollo_Guidance_Computer
Backup system for Apollo PGNCS
The Apollo Abort Guidance System (AGS, also known as Abort Guidance Section) was a backup computer system providing an abort capability in the event of
Apollo_Abort_Guidance_System
Digital computer designed for Project Gemini
The Gemini Guidance Computer (sometimes Gemini Spacecraft On-Board Computer, OBC) was a digital, serial computer designed for Project Gemini, America's
Gemini_Guidance_Computer
Apollo spacecraft guidance system
Apollo primary guidance, navigation, and control system (PGNCS, pronounced pings) was a self-contained inertial guidance system that allowed Apollo spacecraft
Apollo_PGNCS
Early form of read-only memory
used in the 1960s by early NASA Mars space probes and then in the Apollo Guidance Computer (AGC), which was built by Raytheon. The software for the AGC was
Core_rope_memory
United States software engineer (born 1936)
development of the on-board flight software for NASA's Apollo Guidance Computer for the Apollo program. She later founded two software companies, Higher
Margaret Hamilton (software engineer)
Margaret_Hamilton_(software_engineer)
Computer of the Saturn V rocket
dedicated interrupt every 40 ms and takes 18 ms to run. Unlike the Apollo Guidance Computer software, the software which ran on the LVDC seems to have vanished
Launch Vehicle Digital Computer
Launch_Vehicle_Digital_Computer
Stealth (2005) Apollo 13 (1995) Apollo Guidance Computer RocketMan (1997) From the Earth to the Moon (1998, TV miniseries) Apollo Guidance Computer Ghost in
List_of_films_about_computers
Computer system with a dedicated function
the Apollo Guidance Computer, developed ca. 1965 by Charles Stark Draper at the MIT Instrumentation Laboratory. At the project's inception, the Apollo guidance
Embedded_system
US research and development organization
laboratory is best known for developing the Apollo Guidance Computer, the first silicon integrated circuit-based computer. It was renamed for its founder in 1970
Draper_Laboratory
Uncrewed first test flight of the Apollo Lunar Module
testing began, but a planned burn was aborted automatically when the Apollo Guidance Computer detected the craft was not going as fast as planned. Flight Director
Apollo_5
American computer scientist
Eldon Hall was the leader of hardware design efforts for the Apollo Guidance Computer (AGC) at MIT, and advocated the use of integrated circuits for this
Eldon_C._Hall
American engineer (1901–1987)
coast-to-coast unmanned flight. The lab also made the Apollo Moon landings possible through the Apollo Guidance Computer it designed for NASA. In 1960, Draper was
Charles_Stark_Draper
the Apollo Guidance Computer, by the military in the LGM-30 Minuteman intercontinental ballistic missile, the Honeywell ALERT airborne computer, and
History of computing hardware (1960s–present)
History_of_computing_hardware_(1960s–present)
1961–1972 American crewed lunar exploration program
(IMP) and silicon integrated circuit chips in the Apollo Guidance Computer (AGC). The crew of Apollo 8 sent the first live televised pictures of the Earth
Apollo_program
First crewed Moon landing (1969)
integrated circuit (IC) chips in the Apollo Guidance Computer (AGC). Project Apollo was abruptly halted by the Apollo 1 fire on January 27, 1967, in which
Apollo_11
Digital logic gate
and Computer Design Fundamentals, Third Edition. Prentice Hall, 2004. p. 73. Whipple, Walt (2019). First-Hand:Hacking Apollo's Guidance Computer. Engineering
NOR_gate
American NASA aeronautical engineer
optical alignment telescope and space sextant, and Apollo Guidance Computer, which was used during the Apollo missions. Hoag was born in Boston, Massachusetts
David_Hoag
Software company in Cambridge, Massachusetts (founded as Intermetrics 1969)
Laboratory who had worked on the software for NASA's Apollo Program including the Apollo Guidance Computer. The company specialized in compiler technology
AverStar
Private research university in Cambridge, Massachusetts, United States
with computer science, artificial intelligence, biotechnology, open-source software development, and "big science" initiatives like the Apollo Guidance Computer
Massachusetts Institute of Technology
Massachusetts_Institute_of_Technology
Type of computer memory used from 1955 to 1975
core rope memory, for example, was used on the mission-critical Apollo Guidance Computer essential to NASA's successful Moon landings. Using smaller cores
Magnetic-core_memory
NASA crewed Moon landing spacecraft (1969–1972)
The Primary Guidance, Navigation and Control System (PGNCS) was developed by the MIT Instrumentation Laboratory; the Apollo Guidance Computer was manufactured
Apollo_Lunar_Module
Saturn V-launched payload that took men to the Moon
The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo program's goal of landing astronauts on the Moon by the end
Apollo_(spacecraft)
Binary operation that is true if and only if both operands are false
functionally complete). The computer used in the spacecraft that first carried humans to the moon, the Apollo Guidance Computer, was constructed entirely
Logical_NOR
Class of digital circuits
monolithic integrated circuit. RTL integrated circuits were used in the Apollo Guidance Computer, whose design began in 1961 and which first flew in 1966. A bipolar
Resistor–transistor_logic
Claims that the Apollo Moon landings were faked
on computers to aid in the Moon missions. The Apollo Guidance Computer was on the Lunar Module and the command and service module. Many computers at the
Moon landing conspiracy theories
Moon_landing_conspiracy_theories
Class of digital integrated circuits
already an available voltage regulator standard (seen on e.g. the Apollo Guidance Computer). The JEDEC standard was established in 1994. Müller, Marcus. "Why
LVCMOS
the development of the on-board flight software for the Apollo Guidance Computer of the Apollo program. Portrayed by Sonya Walger (seasons 2–3; recurring
List of For All Mankind characters
List_of_For_All_Mankind_characters
2-D grid of wires where data is represented by the presence or absence of diodes at nodes
schemes such as core rope memory, which held the program of the Apollo Guidance Computer, and the capacitor and transformer read-only storage (CCROS and
Diode_matrix
Electronic circuit formed on a small, flat piece of semiconductor material
missile and Apollo program needed lightweight digital computers for their inertial guidance systems. Although the Apollo Guidance Computer led and motivated
Integrated_circuit
Continuously computed dead reckoning
guidance system, inertial instrument) is a navigation device that uses motion sensors (accelerometers), rotation sensors (gyroscopes) and a computer to
Inertial_navigation_system
Term used to collectively refer to the atmosphere and outer space
airborne digital computer, Tradic for the US Boeing B-52 and in the 1960s Raytheon built the MIT-developed Apollo Guidance Computer; the MIL-STD-1553
Aerospace
mid-1960s. The first silicon IC computer was the Apollo Guidance Computer or AGC. Although not the most powerful computer of its time, the extreme constraints
History_of_computing_hardware
Structure that contains the Saturn rocket guidance system
(Spacecraft/Lunar Module Adapter) panels that contained the Apollo Lunar Module. The instrument unit contains the guidance system for the Saturn V rocket. Some of the
Saturn_V_instrument_unit
First crewed space mission to orbit the Moon
to view various stars by using the Apollo Guidance Computer keyboard. He accidentally erased some of the computer's memory, which caused the inertial measurement
Apollo_8
UNIVAC 1824 Autonetics D37 (Solid Circuit, Texas Instruments) 1965 Apollo Guidance Computer First installation Burroughs D84 Litton L-304 - TTL IC Honeywell
List of early third-generation computers
List_of_early_third-generation_computers
been on the Moon, synched to Central Standard Time (CST). The Apollo Guidance Computer (AGC) kept a triple-precision count of time in a real time clock
Timekeeping_on_the_Moon
Either of two concepts in computer engineering
integrated circuits was developed at Fairchild Semiconductor for the Apollo Guidance Computer in 1962. Texas Instruments soon introduced its own family of RTL
Logic_family
Standard forms of Boolean functions
Journey to the Moon: The History of the Apollo Guidance Computer. AIAA. ISBN 1-56347-185-X. "APOLLO GUIDANCE COMPUTER (AGC) Schematics". klabs.org. Rich Katz
Canonical_normal_form
20 February 1962. 1962–1972 – Grumman Lunar Module 1962–1972 – Apollo Guidance Computer 1962–1968 – First Geographic Information System 1962 – Semiconductor
List_of_IEEE_Milestones
Central computer component that executes instructions
integration" (SSI) devices. SSI ICs, such as the ones used in the Apollo Guidance Computer, usually contained up to a few dozen transistors. To build an entire
Central_processing_unit
Second crewed mission to orbit the Moon
York. They visited Cambridge, Massachusetts, for briefings on the Apollo Guidance Computer at the Massachusetts Institute of Technology Instrumentation Laboratory
Apollo_10
Topics referred to by the same term
LUMINARY, the software program controlling the Apollo Guidance Computer in the lunar module of the Apollo missions Luminary Group, a licensing and intellectual
Luminary
First crewed flight of the Apollo space program
and learned to use firefighting equipment. They trained on the Apollo Guidance Computer at MIT. Each crew member spent 160 hours in CM simulations, in
Apollo_7
Anglo-Norman maxim
code for the Apollo 13 lunar module's guidance computer". Ibiblio.org. Retrieved 31 May 2012. "Scan of source code page731 for the Apollo 11 (Luminary099)
Honi_soit_qui_mal_y_pense
Third crewed mission of the Apollo space program
They traveled to Cambridge, Massachusetts, for training on the Apollo Guidance Computer (AGC) at MIT. The crew studied the sky at the Morehead Planetarium
Apollo_9
Making other gates using just NOR gates
kind of logic gate. For example, the first embedded system, the Apollo Guidance Computer, was built exclusively from NOR gates, about 5,600 in total for
NOR_logic
American aerospace engineer (1933–2016)
engineering work included work on the guidance computer for the Minuteman missile and the Abort-Guidance System (AGS) in the Apollo Lunar Module. The AGS played
Judith_Love_Cohen
Branch of engineering
Monitoring Platform (IMP) and silicon integrated circuit chips in the Apollo Guidance Computer (AGC). The development of MOS integrated circuit technology in
Electrical_engineering
Device used to guide vehicles
for preliminary design study of a guidance and navigation system for Apollo program. (see Apollo on-board guidance, navigation, and control system, Dave
Guidance_system
Base memory unit handled by a computer
any specific processor design or computer architecture. The size of a word is reflected in many aspects of a computer's structure and operation; the majority
Word_(computer_architecture)
Aborted Moon landing mission in the Apollo program
Apollo 13 (April 11–17, 1970) was the seventh crewed mission in the Apollo space program and would have been the third Moon landing. The craft was launched
Apollo_13
Electronic display device for displaying digits and some letters
station price display Calculator that has a tail on the "7" digit Apollo Guidance Computer control panel reproduction Marantz CD63SE CD player with a vacuum
Segment_display
1955 naval fighter aircraft by Vought
fly-by-wire project using data-processing equipment adapted from the Apollo Guidance Computer to prove the viability of digital fly-by-wire technology, and a
Vought_F-8_Crusader
Lunar lander built by Astrobotic Technology
artifacts, including literature, art, historical documents (e.g., Apollo Guidance Computer archives, Miracle on 34th Street: The Musical), the reimagined
Griffin_Mission_One
Electronic flight control system
by NASA of the United States as a test aircraft; the F-8 used the Apollo guidance, navigation and control hardware. The Airbus A320 began service in
Fly-by-wire
Power supply with switching regulator
and Francis J. Starzec, from General Motors Company. 1960s The Apollo Guidance Computer, developed in the early 1960s by the MIT Instrumentation Laboratory
Switched-mode_power_supply
American engineer, applied mathematician, and educator (1925–2014)
mathematician and educator who led the design of the Apollo Guidance Computer during the Apollo missions during the 1960s. Battin was born on March 3
Richard_Battin
Failed maiden flight of Ariane 5, 1996
adequately tested before launch Apollo guidance computer – PGNCS trouble, another case where a spacecraft guidance computer suffered from having a subsystem
Ariane_flight_V88
monolithic integrated circuits, including all the logic ICs in the Apollo Guidance Computer, were 3-input resistor–transistor logic NOR gates. The resistor–transistor
Invention of the integrated circuit
Invention_of_the_integrated_circuit
American ICBM
early integrated circuits was the Apollo Guidance Computer, which had similar weight and ruggedness constraints. The Apollo integrated circuits were resistor–transistor
LGM-30_Minuteman
Topics referred to by the same term
Uttar Pradesh, India All glass cartridge automotive fuses. Apollo Guidance Computer, for the Apollo program Atypical Glandular Cells, in the Bethesda system
AGC
Optical and electrical phenomenon
Pennsylvania. Raytheon in Sudbury, Massachusetts manufactured the Apollo Guidance Computer, which used a Sylvania electroluminescent display panel as part
Electroluminescence
Monitoring Platform (IMP) and silicon integrated circuit chips in the Apollo Guidance Computer (AGC). The development of MOS integrated circuit technology in
History of electrical engineering
History_of_electrical_engineering
American corporation
analog computers, two of which were used by NASA in the 1960s for real-time simulation during the development of the Apollo Guidance Computer. In 1982
Beckman_Coulter
Topics referred to by the same term
COLOSSUS, the software program controlling the Apollo Guidance Computer in the command module of the Apollo missions Colossus (supercomputer), developed
Colossus
U.S. defense contractor
Raytheon also manufactured the Apollo Guidance Computer, which was introduced that year and flew aboard all NASA Project Apollo missions. In the late 1970s
Raytheon
Experimental fly-by-wire research project
a modified U.S. Navy Vought F-8C Crusader aircraft, it used a Apollo Guidance Computer as its control system. The aircraft had the tail number NASA 802
F-8 digital fly-by-wire project
F-8_digital_fly-by-wire_project
American computer engineer
the Apollo program's command/service module guidance system. He designed the Executive and Waitlist operating system for the Apollo Guidance Computer (Lunar
J._Halcombe_Laning
American computer designer
American computer designer. He worked at the US MIT Instrumentation Laboratory (now known as the Draper Lab) during the development of the Apollo Guidance, Navigation
Albert_L._Hopkins
Number of transistors in a device
battlefield data. The third generation of computers used integrated circuits (ICs). The 1962 15-bit Apollo Guidance Computer used "about 4,000 "Type-G" (3-input
Transistor_count
spacecraft in space. One well-known guidance officer was Steve Bales, who gave the go call when the Apollo 11 guidance computer came close to overloading during
List of NASA's flight control positions
List_of_NASA's_flight_control_positions
Programming idiom
off or reset. In the Apollo Guidance Computer, for example, this outer loop was contained in the Exec program, and if the computer had absolutely no other
Infinite_loop
calculator Eldon C. Hall – Apollo Guidance Computer Wendy Hall Joseph Halpern Margaret Hamilton – ultra-reliable software design, Apollo program space missions
List_of_computer_scientists
Sculpture by Paul Van Hoeydonck placed on the Moon
exploration. It was commissioned and placed on the Moon by the crew of Apollo 15 at Hadley Rille on August 2, 1971, UTC, next to a plaque listing 14 names
Fallen_Astronaut
Commemorative plaques attached to the United States Apollo Lunar Modules
descent stages of the United States Apollo Lunar Modules flown on lunar landing missions Apollo 11 through Apollo 17, to be left permanently on the lunar
Lunar_plaque
Computer museum in Bozeman, Montana
an Apollo Guidance Computer and a watch worn on the Moon by Apollo 15 Commander David Scott, as well as the last surviving mainframe from the Apollo 11
American Computer & Robotics Museum
American_Computer_&_Robotics_Museum
Topics referred to by the same term
guitarist Marissa Paternoster Noun (EP) Noun, instruction type for Apollo Guidance Computer (AGC) National Open University of Nigeria The Noun Project "Nouns"
Noun_(disambiguation)
Soviet and Russian spacecraft navigation system
Instrument Laboratory will use the first digital computer using integrated circuits, the Apollo Guidance Computer. Two main instrument panels were used for Vostok
Voskhod Spacecraft "Globus" IMP navigation instrument
Voskhod_Spacecraft_"Globus"_IMP_navigation_instrument
American astronaut (1928–2025)
entering data via the Apollo Guidance Computer keyboard. During one of these data entries, Lovell accidentally erased some of the computer's memory by entering
Jim_Lovell
2006 book by Robyn C. Friend
electrical engineer on the abort guidance system of the Apollo Program. The abort guidance system was used during the Apollo 13 mission to safely return the
The_Women_of_Apollo
American computer engineer (1944–2016)
the Apollo Guidance Program Section where he worked with MIT, supervising the design and testing of the Apollo Guidance Computer. During the Apollo missions
Jack_Garman
Documentary television series
the Apollo Command Module and the setback of the Apollo 1 fire. The third episode details the story of MIT's work on the Apollo Guidance Computer. The
Moon_Machines
Portable TV camera suitable for space operations
The Apollo program used several television cameras in its space missions in the late 1960s and 1970s; some of these Apollo TV cameras were also used on
Apollo_TV_camera
Electronic circuits that utilize digital signals
were constructed to save weight and permit the Apollo Guidance Computer to control an inertial guidance system for a spacecraft. The first integrated circuit
Digital_electronics
Hogeschool Eindhoven) development TSOS (later VMOS) (RCA) 1966 Apollo Guidance Computer (AGC) DOS/360 (IBM's Disk Operating System) GEORGE 1 & 2 for ICT
Timeline_of_operating_systems
American astronaut and lunar explorer (born 1932)
Leonov, pp. 84–85. Scott, David (Fall 1982). "The Apollo Guidance Computer: A user's view" (PDF). The Computer Museum Report. Archived (PDF) from the original
David_Scott
Statements left on the Moon in 1969 by the Apollo 11 astronauts
The Apollo 11 goodwill messages are statements from leaders of 73 countries around the world on a disc about the size of a 50-cent piece made of silicon
Apollo_11_goodwill_messages
Illuminated flat panel display
format and are rarely used nowadays. Some uses have included the Apollo Guidance Computer 7-segment numerical displays, to indicate speed and altitude at
Electroluminescent_display
1972–1976 lunar science experiment
Experiment (LEAM) was a lunar science experiment that flew to the Moon on board Apollo 17 in 1972. It collected information on dust particles produced as a result
Lunar Ejecta and Meteorites Experiment
Lunar_Ejecta_and_Meteorites_Experiment
2018-05-23. Retrieved 2018-09-20. K, Special (1 October 2008). "Apollo Guidance Computer (AGC) - fly me to the Moon". TO THE MOON, MARS, AND BEYOND. Archived
List_of_UNIVAC_products
American integrated circuit manufacturer
"micrologic" resistor–transistor logic (RTL) line which was used in the Apollo Guidance Computer. It had the advantage of being extremely simple – each inverter
Fairchild_Semiconductor
as a way of giving it legitimacy during the development of the Apollo Guidance Computer. I fought to bring the software legitimacy so that it—and those
History of software engineering
History_of_software_engineering
served as the guidance computer lead programmer for the Apollo program, while Judy Sullivan was the lead biomedical engineer for the Apollo 11 mission.
Women_at_NASA
Topics referred to by the same term
that can mean: an EXCHANGE instruction in the IBM 1130 and the Apollo Guidance Computer The IATA airport code for Christmas Island Airport This disambiguation
XCH
Form of non-volatile memory used in computers and other electronic devices
store (WCS) for additional diagnostics and emulation support. The Apollo Guidance Computer used core rope memory, programmed by threading wires through magnetic
Read-only_memory
Electronics Universal Space Guidance System (USGS) on operational Titan II missiles starting in January 1978. The guidance computer in the USGS was the Magic
ASC-15
American computer engineer at NASA
computer for the Apollo Guidance Program Section where he worked with MIT, and other researchers, on the Apollo Guidance Computer. During the Apollo missions
Don_Eyles
NASA program to investigate interplanetary plasma and magnetic field
18) in 1963. This predates the use of IC chips in the Apollo Guidance Computer, used for the Apollo program. The MOSFET (metal–oxide–semiconductor field-effect
Interplanetary Monitoring Platform
Interplanetary_Monitoring_Platform
Flat surface mount integrated circuit package
Flat pack integrated circuits welded on PCB in the Apollo Guidance Computer
Flatpack_(electronics)
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
Girl/Female
Muslim
Guidance
Boy/Male
Greek
Manly beauty. In Greek mythology, Apollo was the god of medicine and healing who drove his fiery...
Girl/Female
Indian
Guidance
Girl/Female
Indian
Guidance
Boy/Male
Greek Biblical
Manly beauty. In Greek mythology, Apollo was the god of medicine and healing who drove his fiery...
Male
Arthurian
, destroyer; an ancient knight and ancestor of Tristan.
Girl/Female
Arabic, Muslim
Guidance
Male
English
 Pet form of English Rolland, ROLLO means "famous land." Compare with another form of Rollo.
Male
Italian
Italian form of English Harold, AROLDO means "army leader."
Girl/Female
Indian
Guidance
Male
English
Anglicized form of Greek ApollyÅn, APOLLYON means "destroyer." In the New Testament bible, this is the name of the angel-prince of the infernal regions, the minister of death and author of havoc on earth. He is also known by the name Abaddon.
Male
Greek
(Ἀπόλλων) Greek myth name of a god of archery, healing, light, poetry, prophecy, music, and the sun. He is the son of Zeus and Lêtô, and the twin brother of Artemis, goddess of the hunt and moon. According to Æschylus, the name comes from apollumi, APOLLON means "to destroy," hence "the destroyer."Â
Boy/Male
Greek
Manly beauty. In Greek mythology, Apollo was the god of medicine and healing who drove his fiery...
Girl/Female
Muslim
Guidance
Girl/Female
Muslim
Guidance
Boy/Male
Arthurian Legend Greek Latin
Uncle of Tristan.
Male
Greek
(Ἀπολλώς) Contracted form of Greek Apollonios, APOLLOS means "of Apollo." In the bible, this is the name of a learned Jew from Alexandria who became a Christian and a teacher of Christianity.
Boy/Male
Australian, Danish, French, Greek, Latin
Manly; Destroyer
Male
Italian
Italian form of Latin Paulus, PAOLO means "small."
Male
Italian
Italian form of Latin Adolfus, ADOLFO means "noble wolf."
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
Boy/Male
Indian
A name of Vishnu, Without enemies
Girl/Female
African, American, Australian, British, Christian, Danish, English, French, German, Italian, Jamaican, Latin, Romanian, Shakespearean
Sometimes Given to the Eighth-born Child; Born Eighth
Surname or Lastname
English
English : habitational name, perhaps from a place in Norfolk named Bridgham, from Old English brycg ‘bridge’ + hÄm ‘homestead’ or hamm ‘enclosure hemmed in by water’, or from Bridgeham Grange in Surrey, which probably has the same origin.
Surname or Lastname
English
English : variant of Boulding, a patronymic from the Germanic personal name Baldo, a short form of any of the various compound names with the first element bald ‘bold’.
Boy/Male
Japanese
Add a man's strength.
Boy/Male
Muslim
Just, Fair
Girl/Female
Hindu, Indian, Tamil, Telugu
Blessing; Good
Male
English
Anglicized form of Hebrew Yehuwdiy, JEHUDI means "Jew." In the bible, this is the name of a son of Nethaniah.
Girl/Female
Arabic, Muslim
Sun of the Women
Boy/Male
Muslim/Islamic
Lord Master
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
APOLLO GUIDANCE-COMPUTER
n.
Guidance; lead; direction.
n.
Skillful guidance or management; generalship.
n.
The act or result of guiding; the superintendence or assistance of a guide; direction; government; a leading.
a.
Protection; patronage and care; guidance.
n.
Apollo; the sun god.
n.
Government; guidance.
a.
Of or pertaining to Delphi, to the temple of Apollo, or to the priestess of Apollo, who delivered oracles at Delphi.
n.
Guidance; direction.
n.
Direction; regulation; management; guidance.
a.
Of, pertaining to, or resembling, Apollo.
n.
Wrong guidance.
v. t.
To remove the poll or head of; hence, to remove the top or end of; to clip; to lop; to shear; as, to poll the head; to poll a tree.
n.
Guidance.
n.
A mountain in Greece, sacred to Apollo and the Muses, and famous for a temple of Apollo and for the Castalian spring.
n.
Guidance by the hand.
n.
Guidance; direction.
v. t.
To cut off; to remove by clipping, shearing, etc.; to mow or crop; -- sometimes with off; as, to poll the hair; to poll wool; to poll grass.
n.
Guidance, as by a pilot.
a.
In honor of Apollo; as, the Apollinarian games.
n.
Guidance.