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Overview

mirage

Optical effect in which major vertical variation in temperature of the lower atmosphere produces differential refraction of light, resulting for example in raised images and in gaps, which ...

mirage

mirage   Quick reference

World Encyclopedia

Reference type:
Subject Reference
Current Version:
2004
Subject:
Encyclopedias
Length:
47 words

... Type of optical illusion sometimes seen near the Earth's surface when light is refracted (bent) as it passes between cool dense air to warmer, less dense air. Mirages are most commonly seen shimmering on hot, dry roads; the shimmer is a refracted image of the...

mirage

mirage   Quick reference

A Dictionary of Environment and Conservation (3 ed.)

Reference type:
Subject Reference
Current Version:
2017

... An optical illusion in which the appearance of distant objects is distorted by the refraction of light as it passes between layers of relatively warm and cool...

mirage

mirage   Quick reference

A Dictionary of Physics (8 ed.)

Reference type:
Subject Reference
Current Version:
2019
Subject:
Science and technology, Physics
Length:
109 words

...mirage An optical phenomenon that occurs as a result of the bending of light rays through layers of air having very large temperature gradients. An inferior mirage occurs when the ground surface is strongly heated and the air near the ground is much warmer that the air above. Light rays from the sky are strongly refracted upwards near the surface giving the appearance of a pool of water. A superior mirage occurs if the air close to the ground surface is much colder than the air above. Light is bent downwards from the object towards the viewer so that it...

mirage

mirage   Quick reference

A Dictionary of Geology and Earth Sciences (5 ed.)

Reference type:
Subject Reference
Current Version:
2020

... Optical effect in which a major variation in temperature between layers of the lower atmosphere produces differential refraction of light, resulting for example in raised images and in gaps, which may give the appearance of a water...

mirage

mirage   Quick reference

A Dictionary of Ecology (5 ed.)

Reference type:
Subject Reference
Current Version:
2015

... An optical effect in which major vertical variation in temperature of the lower atmosphere produces differential refraction of light, resulting, for example, in raised images and in gaps, which may give the appearance of a water...

mirage

mirage   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

...the inferior mirage and the superior mirage , named according to whether the virtual image appears below or above its ‘true’ position, i.e. its apparent position if it were seen through a homogeneous layer of air. An inferior mirage occurs when the lowest layer of air is heated, as over a hot road or desert sands, or when cold air overlies a warm sea. Rays of light from the sky are strongly refracted upwards and reach the eye on paths that make them appear to come from closer to the surface, leading to the familiar sight of ‘pools of water’ on a hot road....

mirage

mirage   Quick reference

M. V. Angel

The Oxford Companion to Ships and the Sea (2 ed.)

Reference type:
Subject Reference
Current Version:
2007
Subject:
History, Social sciences
Length:
82 words

... , a natural optical illusion caused both at sea and on land by the refraction of light passing through layers of air of different densities. These are usually caused by temperature differences, but can be because the layers of air contain different amounts of water vapour. Particularly in tropical seas, heat hazes often result in the appearance, above the horizon , of islands that normally would be below the horizon and too far away to be in line of sight. M. V....

Mirage 2000

Mirage 2000   Reference library

The Oxford Essential Dictionary of the U.S. Military

Reference type:
Subject Reference
Current Version:
2002

... 2000 a delta-wing multipurpose fighter aircraft, produced by Dassault-Breguet, a French aeronautics firm, that replaced the Mirage F-1 in the French air...

mock mirage

mock mirage   Quick reference

A Dictionary of Weather (2 ed.)

Reference type:
Subject Reference
Current Version:
2008

...mirage A term proposed for a recently recognized optical effect in which an observer, sited above an inversion layer that gives rise to anomalous propagation (ducting), sees a section of the image of a distant object as inverted. See also mirage...

Mirage, Gaf

Mirage, Gaf   Reference library

The Oxford Companion to Australian Military History (2 ed.)

Reference type:
Subject Reference
Current Version:
2009

..., Gaf (Single-seat fighter [IIIO]). Wingspan 26 feet 11.5 inches; length 49 feet 3.5 inches; armament 2 × 30-mm cannon, 1 × Matra air-to-air missile, 2 × Sidewinder air-to-air missiles, 2000 pounds bombs; maximum speed Mach 1.14 at sea level, Mach 2.05 at 30,000 feet; range 745 miles; power 1 × SNECMA Atar 13670-pound thrust turbojet. The Mirage was a delta-wing fighter able to fly at twice the speed of sound, designed by Dassault in France. The Mirage IIIO was a modification of the French IIIE design built by the Government Aircraft Factory, with engines...

Mirage, The

Mirage, The (1955)   Reference library

The Oxford Companion to Australian Literature (2 ed.)

Reference type:
Subject Reference
Current Version:
2005
Subject:
Literature
Length:
96 words

..., The ( 1955 ), a novel by F. Bert Vickers , has also been published in Russia and in East Germany, resulting in considerable correspondence between Vickers and European students about the Aboriginal situation in Australia. The novel's principal characters are two Aborigines, Freddie Adams and the girl Nona. Freddie Adams, growing up as part-Aboriginal, is alien to both the tribal life of the Aborigines and to White society, and the discrimination he suffers ultimately brings about his destruction. A well-planned novel with warm and realistic characters, ...

Mirage F-1

Mirage F-1   Reference library

The Oxford Essential Dictionary of the U.S. Military

Reference type:
Subject Reference
Current Version:
2002

... F-1 a multipurpose fighter aircraft that entered the French air force in 1973...

mirage

mirage   Quick reference

The Concise Oxford Dictionary of English Etymology

Reference type:
Subject Reference
Current Version:
2003
Subject:
Language reference, History of English
Length:
18 words

... XIX. — F. mirage , f. mirer refl. look at oneself in a mirror — L. mīrāre ; see prec., -AGE...

mirage

mirage   Quick reference

New Oxford Rhyming Dictionary (2 ed.)

Reference type:
Subject Reference
Current Version:
2013
Subject:
Language reference
Length:
39 words

... • décolletage , découpage, Lesage, maquillage, paysage, plage, potage, vernissage • triage • persiflage • fuselage • collage • ménage • badinage • counter-espionage • mirage • entourage • corsage • repêchage • frottage • montage , photomontage • ...

mirage

mirage noun & adjective   Reference library

The Oxford Essential Dictionary of Foreign Terms in English

Reference type:
Subject Reference
Current Version:
2002
Subject:
Language reference
Length:
118 words

... noun & adjective E19 French (from se mirer to be reflected or mirrored, from Latin mirare ). A noun 1 E19 An optical illusion caused by at mospheric conditions (usually the refraction of light in heated air); especially the false appearance of a distant sheet of water in a desert or on a hot road. Also, the appearance in the sky of a reflected image of a distant object, a wavelike appearance of warmed air just above the ground. 2 E19 figuratively An illusion, a fantasy. 3 E20 Any of various pale fashion colors; especially pale blue, gray, or...

mirage

mirage nm   Quick reference

Pocket Oxford-Hachette French Dictionary: French-English (4 ed.)

Reference type:
Bilingual Dictionary
Current Version:
2012
Subject:
Bilingual dictionaries
Length:
4 words
mirage

mirage n   Quick reference

Pocket Oxford Italian Dictionary: English-Italian (4 ed.)

Reference type:
Bilingual Dictionary
Current Version:
2012
Subject:
Bilingual dictionaries
Length:
5 words
mirage

mirage n   Quick reference

Pocket Oxford Spanish Dictionary: English-Spanish (4 ed.)

Reference type:
Bilingual Dictionary
Current Version:
2012
Subject:
Bilingual dictionaries
Length:
8 words
mirage

mirage n.   Quick reference

Pocket Oxford German Dictionary: English German (4 ed.)

Reference type:
Bilingual Dictionary
Current Version:
2012
Subject:
Bilingual dictionaries
Length:
6 words
mirage

mirage noun   Quick reference

Pocket Oxford American Thesaurus (2 ed.)

Reference type:
English Dictionary
Current Version:
2012
Subject:
English Dictionaries and Thesauri
Length:
29 words

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