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Property of an object or substance that is impervious to light
Opacity is the measure of impenetrability to electromagnetic or other kinds of radiation, especially visible light. In radiative transfer, it describes
Opacity
Optical law in astrophysics
Kramers' opacity law describes the opacity of a medium in terms of the ambient density and temperature, assuming that the opacity is dominated by bound-free
Kramers'_opacity_law
Medical condition
used when the cornea of the eye loses its transparency. The term corneal opacity is used particularly for the loss of transparency of cornea due to scarring
Corneal_opacity
Radiologic sign on radiographs and computed tomography scans
Ground-glass opacity (GGO) is a finding seen on chest x-ray (radiograph) or computed tomography (CT) imaging of the lungs. It is typically defined as
Ground-glass_opacity
Topics referred to by the same term
Look up opacity or opaque in Wiktionary, the free dictionary. Opacity or opaque may refer to: Impediments to (especially, visible) light: Opacities, absorption
Opacity_(disambiguation)
Removal of opacified lens from the eye
Cataract surgery is the removal of the natural lens of the eye that has developed a cataract, an opaque or cloudy area. The eye's natural lens is usually
Cataract_surgery
§ Brackets and transcription delimiters. Phonological opacity is a phenomenon in phonology. Opacity exists when a phonological rule that exists in a given
Phonological_opacity
Context where substituting equivalent expressions can change truth or meaning
An opaque context or referentially opaque context is a linguistic context in which it is not always possible to substitute "co-referential" expressions
Opaque_context
Property of paint
manifesting in the opacity of a layer of paint. The term hiding is generic and applied to designate either hiding power or opacity. If the coating of
Hiding_power
Type of foreign policy
nuclear weapons, which its commentators term "nuclear ambiguity" or "nuclear opacity". It is a general consensus that Israel is in possession of nuclear weapons
Policy of deliberate ambiguity
Policy_of_deliberate_ambiguity
Reliance on design or implementation secrecy for security
In security engineering, security through obscurity is the practice of concealing the details or mechanisms of a system to enhance its security. This approach
Security_through_obscurity
for details; The attenuation coefficient is also sometimes called opacity; see opacity (optics). A very similar approach uses the penetration depth: E (
Mathematical descriptions of opacity
Mathematical_descriptions_of_opacity
Scale for measuring the opacity of smoke
The Ringelmann scale is a scale for measuring the apparent density or opacity of smoke. It was developed by a French professor of agricultural engineering
Ringelmann_scale
French writer, poet, philosopher and literary critic
explores the concept of opacity, which is the lack of transparency, the untransability, and the unknowability. And for this reason, opacity has the radical potential
Édouard_Glissant
Graphic depiction of a geographic phenomenon
sub-symbols, often either random or as a regular grid. Transparency or Opacity, the mathematical blending of symbols of overlapping features, giving the
Map_symbol
a rounded appearance on the top, with the lower part appearing ragged. Opacity-based None; always translucent except species spissatus which is inherently
List_of_cloud_types
Seven stages that occur after a human being dies
and examination. The stages that follow shortly after death are: Corneal opacity, "clouding" in the eyes Pallor mortis, paleness which happens in the first
Stages_of_human_death
Type of cloud
Stratus clouds are low-level clouds characterized by horizontal layering with a uniform base, as opposed to convective or cumuliform clouds formed by rising
Stratus_cloud
Protein family
Opacity family porins are a family of porins from pathogenic Neisseria. These bacteria possess a repertoire of phase-variable opacity proteins that mediate
Opacity_porins
Genus of mid-level cloud
arranged in several layers, is coded CM9. Opacity-based varieties: Altocumulus stratiformis has three opacity-based varieties; Translucidus (CM3), perlucidus
Altocumulus_cloud
Medical condition
of vision loss. Corneal cloudiness may have myriad of causes. Corneal opacity that results from hereditary dystrophies is usually symmetric. Corneal
Primary_congenital_glaucoma
Legwear for the feet and legs
of knitted fabric, and its thickness and weight is defined by denier or opacity. Lower denier measurements of 5 to 15 describe a hose which may be sheer
Hosiery
Cause of changes in luminosity in pulsating variable stars
The kappa opacity mechanism is the driving mechanism behind the changes in luminosity of many types of pulsating variable stars. The term Eddington valve
Kappa–mechanism
Two-dimensional vector image file format
radial (circular), and can involve any number of colors as well as repeats. Opacity gradients can also be specified. Patterns are based on predefined raster
SVG
How two or more digital photo layers are mixed together
modify the basic blend modes, for example by applying different levels of opacity to the top "layer". The top "layer" is not necessarily a layer in the application;
Blend_modes
2015 EP by SikTh
Opacities is the fourth EP by British progressive metal band SikTh. The EP is the band's first release since reforming in 2014. Opacities was self–released
Opacities_(EP)
Region of a star
where κ(r) is the opacity, ρ(r) is the matter density, L(r) is the luminosity, and σB is the Stefan–Boltzmann constant. Hence the opacity (κ) and radiation
Radiative_zone
Term for abstraction in computer programming
In the context of computer programming, magic is an informal term for abstraction; it is used to describe code that handles complex tasks while hiding
Magic_(programming)
Physical property of allowing light
brilliant spectrum of every color. The opposite property of translucency is opacity. Other categories of visual appearance, related to the perception of regular
Transparency_and_translucency
Type of paint
Gouache paints come in many colors and are usually mixed with water to achieve the desired working properties and to control the opacity when dry.
Gouache
Difference in coloration, usually of the iris but also of hair or skin
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Heterochromia
Paper made to have low opacity, allowing light to pass through
Tracing paper is paper made to have low opacity, allowing light to pass through. Its origins date back to at least the 1300s, when it was used by artists
Tracing_paper
Distinctive narrow spectral feature of chemical species
rather than simply upon conditions that are local to the emitting particle. Opacity broadening is an example of a non-local broadening mechanism. Electromagnetic
Spectral_line
A riometer (commonly relative ionospheric opacity meter, although originally: Relative Ionospheric Opacity Meter for Extra-Terrestrial Emissions of Radio
Riometer
Benign type of pneumoconiosis
months of exposure. Barium compounds have a high radio-opacity. Extremely dense, discrete small opacities of 2–4 mm diameter, sometimes of a star-like configuration
Baritosis
Paint made from lime and chalk
has very low opacity, which can lead novices to overthicken the paint. Drying increases opacity and subsequent curing increases opacity even further.
Whitewash
Solid, non-blisterform elevated areas in or under the skin
pulmonology, when imaging the lungs by radiography, a nodule is a round, focal opacity in the lung tissue of less than 3 cm in diameter, with lesions larger than
Nodule_(medicine)
Catalog of Dark Nebula
Declination (J2000.0) Galactic longitude Galactic latitude Area (square degrees) Opacity (1–6) 1 16:28.9 -16:07 0.18 21.82 0.054 3 2 18:07.2 -31:30 0.13 -5.32 1
Lynds' Catalogue of Dark Nebulae
Lynds'_Catalogue_of_Dark_Nebulae
Luminosity–temperature relationship in stars
and have their opacity dominated by hydrogen ions. Stars less than 0.5 M☉ are fully convective even on the main sequence, but their opacity begins to be
Hayashi_track
Clouding of the transparent cornea of the eye
dystrophies should be suspected when corneal transparency is lost or corneal opacities occur spontaneously, particularly in both corneas, and especially in the
Corneal_dystrophy
Israel's deterrence strategy of massive retaliation with nuclear weapons
policy of deliberate ambiguity known as "nuclear ambiguity" or "nuclear opacity." This has made it difficult for anyone outside the Israeli government
Samson_Option
Medical condition
of life. This cloudiness, or opacity, causes the corneal epithelium to become elevated, which leads to corneal opacities. The corneal erosions may prompt
Reis–Bucklers corneal dystrophy
Reis–Bucklers_corneal_dystrophy
Contagious disease caused by SARS-CoV-2
lungs, white patches were observed containing fluid known as ground-glass opacity (GGO) or simply ground glass. This tended to correlate with the clear jelly
COVID-19
Dark nebula in the constellation Ophiuchus
with 7× binoculars. The nebula has two main parts: the Pipe Stem with an opacity of 6 which is composed of Barnard 59, 65, 66, and 67 (also known as LDN
Pipe_Nebula
American physicist (1921–2023)
worked on Project Orion. His work had to do with opacity, mostly in the context of atmospheric opacity to nuclear radiation. In late 1945, Harris Mayer
Harris_Mayer
Visual representation of data
negative values. C. Divide the graph into distinct bands. D. Adjust the opacity of the areas based on the number of subdivisions. E. Layer the obtained
Horizon_chart
Family class 3 cloud type
A stratocumulus cloud [Kämtz 1840], occasionally called a cumulostratus, belongs to a genus-type of clouds characterized by large dark, rounded masses
Stratocumulus_cloud
Family of lossless-compression image file formats
below cannot combine 8-bit alpha transparency AND element opacity (CSS – filter: Alpha (opacity=xx)) without filling partially transparent sections with
PNG
Diseases of the space or tissue between the alveoli of the lungs
Interstitial lung disease (ILD), or diffuse parenchymal lung disease (DPLD), is a group of respiratory diseases affecting the interstitium (the tissue)
Interstitial_lung_disease
Milk based brandy or bourbon beverage
the milk to curdle, so that the solids contributing to the beverage's opacity may be strained out. The drink was first recorded in William Sacheverell's
Milk_punch
1298 battle of the First War of Scottish Independence
the Battle by OS". Central Retail Park from zoomable 25 inch OS map with opacity slider. Ordnance Survey. Archived from the original on 30 November 2012
Battle_of_Falkirk
Pattern seen in radiologic examinations
Distinct fibrotic scar and hilar opacity following secondary tuberculosis on chest x-ray
Omental_cake
Mythical object that grants invisibility
A cloak of invisibility is an item that prevents the wearer from being seen. In folklore, mythology and fairy tales, a cloak of invisibility appears either
Cloak_of_invisibility
Bolivarian mission
million houses. The program has been subject to criticism due to corruption, opacity and structural deficiencies. Between 2012 and 2013, Colombian businessman
Great Mission Housing Venezuela
Great_Mission_Housing_Venezuela
Real estate company
Sun Hung Kai Properties Limited (SHKP) is a listed corporation and one of the largest property developers in Hong Kong. The company's businesses include
Sun_Hung_Kai_Properties
Medical condition
be a sign of high cholesterol. It is the most common peripheral corneal opacity, and is usually found in the elderly where it is considered a benign condition
Arcus_senilis
Level of opacity to the radio wave and X-ray portion of the electromagnetic spectrum
Radiodensity (or radiopacity) refers to the degree of opacity to the radio wave and X-ray portion of the electromagnetic spectrum: that is, the relative
Radiodensity
Type of variable star that pulsates radially
Cepheids change brightness due to the κ–mechanism, which occurs when the opacity of a star's atmosphere increases with temperature rather than decreasing
Cepheid_variable
Lens implanted in the eye to treat cataracts and/or myopia or hyperopia
A posterior capsular opacity (PCO) around a posterior chamber IOL (as seen on retroillumination in a slit lamp)
Intraocular_lens
Radiologic sign
radiographs with interstitial pulmonary edema. They are thin linear pulmonary opacities caused by fluid or cellular infiltration into the interstitium of the
Kerley_lines
1984 gas-leak accident in Bhopal, India
health effects are: Eyes: Chronic conjunctivitis, scars on cornea, corneal opacities, early cataracts Respiratory tracts: Obstructive and/or restrictive disease
Bhopal_disaster
Opacity in the eye's lens present at birth
cataracts are a lens opacity that is present at birth. Congenital cataracts occur in a broad range of severity. Some lens opacities do not progress and
Congenital_cataract
Painting by Marie-Guillemine Benoist
neatly into either category. Drawing on Édouard Glissant’s concept of opacity, Bishop suggests that the sitter's expression, the absence of her name
Portrait_of_Madeleine
Cream-estimating instrument
estimating the amount of cream in milk, based on its relative opacity. The higher the opacity, the greater the amount of cream present. Credit for the development
Lactoscope
Former hospital in Michigan, United States
of their lives. "Ypsilanti State Hospital." Opacity. Ed. Tom Kirsch. Web. 1 Nov. 2009. <http://www.opacity.us/site102_ypsilanti_state_hospital.htm Archived
Ypsilanti_State_Hospital
Advocates of normative linguistic transparency often argue that linguistic opacity is dangerous to a democracy. These critics point out that jargon is deliberately
Transparency_(linguistic)
Visible mass of particles suspended in the atmosphere
varieties fall into one of two main groups. One group identifies the opacities of particular low and mid-level cloud structures and comprises the varieties
Cloud
Type of translucent glass
through, thus blurring images while still transmitting light. It has 10–20% opacity.[citation needed] General applications include: To achieve visual privacy
Frosted_glass
Swelling of the eyelid due to infection of an oil gland
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Stye
Dark absorption nebula
published in 1927, at which stage it included some 350 objects. Because of its opacity, its interior is extremely cold, its temperature being about 16 K (−257 °C/−431 °F)
Barnard_68
Swelling of the conjunctiva
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Chemosis
Cosmetic product
gives off a more pigmented color.) The product is available in ranges of opacity from translucent to solid and can have variously frosted, glittery, glossy
Lip_gloss
Continuous band of stars that appears on plots of stellar color versus brightness
similar-mass main sequence stars. In fact, a higher metallicity leads to a higher opacity whereby the energy production can remain concentrated in the core without
Main_sequence
Type of visual impairment
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Riddoch_syndrome
Medical condition
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Achromatopsia
Condition making it difficult or impossible to see in relatively low light
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Nyctalopia
2024 American film
outset. When we're not following McVeigh, played with impressive, surly opacity by Britain's Alfie Allen, we're observing him, almost like wildlife and
McVeigh_(film)
Topics referred to by the same term
Look up cataract in Wiktionary, the free dictionary. A cataract is an opacity in the lens of the eye or its capsule. Cataract also may refer to: Cataract
Cataract_(disambiguation)
Glass with electrically switchable opacity
electrochromic windows, the material changes its opacity. A burst of electricity is required for changing its opacity, but the material maintains its shade with
Smart_glass
Difference in the perceived size of eye images
a crystalline lens. The crystalline lens is often removed because of opacities called cataracts. The absence of this lens left the patient highly hyperopic
Aniseikonia
Windows icon file format
single image consisting of a color mask (the "XOR mask") together with an opacity mask (the "AND mask"). The XOR mask must precede the AND mask inside the
ICO_(file_format)
Path taken by pre-main-sequence stars in the Hertzsprung–Russell diagram
tells us the relation of opacity (κ) and temperature gradient T. Stars with high opacity will be convective, while low opacity will be radiative for heat
Henyey_track
Liquid extracted from coconuts
is a plant milk extracted from the grated pulp of mature coconuts. The opacity and rich taste of the milky-white liquid are due to its high oil content
Coconut_milk
Type of Italian red wine
Barolo, like most nebbiolo-based wines, is known for its light colour and lack of opacity.
Barolo
Type of eye defect
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Astigmatism
Medical condition
retardation (i.e., delayed development of movement and coordination), corneal opacity, retinal degeneration and other ophthalmological abnormalities. Other symptoms
Mucolipidosis_type_IV
Loss of vision without any organic cause
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Functional_visual_loss
Unequal size of the eyes' pupils
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Anisocoria
Dark nebula in the constellation Orion
interstellar clouds resulting in alternating sections of nearly complete opacity and transparency. The darkness of the Horsehead is caused mostly by thick
Horsehead_Nebula
Eye condition in which light is focused behind instead of on the retina
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Farsightedness
AT2017gfo, the kilonova associated with GW170817. The inferred ejecta mass and opacity are consistent with a neutron star–neutron star merger, although a neutron
GRB_211211A
American artificial intelligence research scientist
arguing that the centrality of tech to core social institutions, and the opacity of tech deployment, made such disclosures crucial to the public interest
Meredith_Whittaker
Overseas department and region of France
Caribbean: French Martinique as a Social Laboratory. Murray, David A. B. – Opacity: Gender, Sexuality, Race and the 'Problem' of Identity in Martinique. Slater
Martinique
Visual aura associated with migraine
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Scintillating_scotoma
Transparency in the software supply chain is a condition in which participants involved in the development, procurement, operation, auditing, or regulation
Transparency in the software supply chain
Transparency_in_the_software_supply_chain
Inflammation of the uvea of the eye
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Uveitis
Deposits within the eye's vitreous humour
is a possible treatment option for the removal of vitreous strands and opacities (floaters). In this procedure an ophthalmic laser (usually a yttrium aluminium
Floater
Eye that appears red due to illness or injury
flush (circumcorneal injection) Corneal abnormalities including edema or opacities ("corneal haze") Corneal staining Pupil abormalities including abormal
Red_eye_(medicine)
Form of strabismus in which the eyes turn inward
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Esotropia
Eyes not aligning when looking at something
marginal degeneration Post-LASIK ectasia Keratoconjunctivitis sicca Corneal opacity Corneal neovascularization Kayser–Fleischer ring Haab's striae Arcus senilis
Strabismus
OPACITY
OPACITY
Surname or Lastname
English
English : habitational name from the city of York in northern England, or perhaps in some cases a regional name from the county of Yorkshire. The surname is now widespread throughout England. Originally, the city bore the British name Eburacum, which probably meant ‘yew-tree place’. This was altered by folk etymology into Old English EoforwÄ«c (from the elements eofor ‘wild boar’ + wÄ«c ‘outlying settlement’). This name was taken over by Scandinavian settlers in the area, who altered it back to opacity in the form IorvÃk and eventually Iork, in which form it finally settled by the 13th century. The surname has also been adopted by Jews as an Americanized form of various like-sounding Jewish surnames.
OPACITY
OPACITY
Boy/Male
Irish
Black.
Boy/Male
Muslim
Shedder of flowers, Generous
Boy/Male
Hindu, Indian
Lord Ganesha Name
Girl/Female
Hindu
Boy/Male
Russian
Defends mankind.
Boy/Male
Tamil
Vallmanalan | வாலà¯à®²à¯à®®à®¾à®‚நாலநÂ
Lord Murugan
Boy/Male
Indian
Writer
Girl/Female
Tamil
Lolaksi | லோலாகஸீÂ
A Shakti of Ganesh
Boy/Male
Indian, Punjabi, Sikh
Well-wisher
Girl/Female
Christian, Hebrew, Indian
Beautiful Flower; Hill
OPACITY
OPACITY
OPACITY
OPACITY
OPACITY
n.
A white spot or a slight opacity of the cornea.
n.
That which is opaque; opacity.
n.
Weakness of sight, without and opacity of the cornea, or of the interior of the eye; the first degree of amaurosis.
n.
A very vascular superficial opacity of the cornea, usually caused by granulation of the eyelids.
n.
The state or quality of being impervious to light; opacity.
n.
An opacity of the crystalline lens, or of its capsule, which prevents the passage of the rays of light and impairs or destroys the sight.
n.
Obscurity; want of clearness.
n.
A thin skin; a pellicle; a membranous covering, causing opacity; hence, any thin, slight covering.
n.
A white opacity in the cornea of the eye; -- called also albugo.
n.
The state of being opaque; the quality of a body which renders it impervious to the rays of light; want of transparency; opaqueness.
n.
An instrument for estimating the amount of cream contained in milk by ascertaining its relative opacity.