Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. The width-to-height ratio of a film or television image.
- n. The span-to-mean-chord ratio of an airfoil.
Wiktionary
- n. The ratio of an object's longest dimension to its next-longest dimension.
- n. The ratio of width to height in a flat surface or 2-dimensional abstract construction, such as an image, character, or pixel. 4:3 (or 1.33:1) is the standard ratio for NTSC video. 1.85:1 and 2.35:1 are the most common aspect ratios for motion pictures.
GNU Webster's 1913
- (Aëronautics) The ratio of the long to the short side of an aëroplane, aërocurve, or wing.
WordNet 3.0
- n. the ratio of the width to the height of a tv picture
Etymologies
- aspect + ratio (Wiktionary)
Examples
“The aspect ratio 16:9 was decided upon, compatible with widescreen movies shot in CinemaScope, Panavision or other anamorphic squeezed by the camera lens, then unsqueezed by the projector lens systems.”
Lists
These user-created lists contain the word ‘aspect ratio’.
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SCIE - EU nomenclature
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
abdominal, absorbent, accelerator, accumulator, acebutolol, acetamide, acetanilide, acetate, acetic acid, acetone, acetous, acetyl and 1171 more...
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IMCO - EU nomenclature
includes words of the "Prodcom list"
abaca, abdominal, abrasive, absorbent, absorber, accelerator, accessory, account book, accumulator, acebutolol, acetaldehyde, acetamide and 4515 more...
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TECH - digital photography
AD converter, AE lock, AF assist lamp, AF servo, aliasing, anti-shake, aperture, aperture priority, artifact, aspect ratio, auto bracketing, autofocus and 106 more...
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SCIE - noun-noun collocations
The collocations below consist of nouns only. Noun-noun collocations are extremely frequent in science (just think of the names of species, chemical compounds or "scientist+invention" type collocat...
discharge lamp, correlation matrix, obidoxime chloride, withdrawal symptom, ipratropium bromide, book lung, zirconium dioxide, octane number, acetyl group, computer accessory, pinto bean, regression equation and 480 more...
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Film and Cinematography
A list of terms used in cinematography
anamorphic, a and b rolls, academy aperture, academy leader, answer print, married print, filmography, apple box, aspect ratio, backwind, camera-stylo, barndoors and 53 more...
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Digital Photography
red-eye, center-weighted, matrix metering, cmos sensor, burst mode, slow synchro, rear-curtain sync, forced flash, strobes, pre-strobe, hot shoe, fill flash and 102 more...
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All dressed up and no place to go
another toybox where I can put words I want to play with later.
toybox, excrescence, greengrocer, sequin, gehenna, ingenuous, disingenuous, cavil, ingenius, exsanguination, pictograph, postulate and 31 more...
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Innovators in Motion Pictures
Movies would not exist without the people who invented or developed these objects and processes. At least, not as we know them.
zoom lens, wipe, visual effect, tripod, tracking shot, tilt, three-dimensional, substitution shot, stop-motion anima..., stereophonic sound, sprockets, shutter and 58 more...
Tweets
Looking for tweets for aspect ratio.

hernesheir (n): in filmography, the proportions of the frame. In 16mm and 35mm the camera photographs a slightly square image, with an aspect ratio of 1.33 to 1. In 35mm the image is usually shot with the Academy Aperture and then masked in the projector to produce a wider image: 1.85 in the U.S. and 1.66 in Europe. Jan 17, 2009