aperture

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Related to aperture: Shutter speed

ap·er·ture

(ăp′ər-chər)

1. An opening, such as a hole, gap, or slit.

a. A usually adjustable opening in an optical instrument, such as a camera or telescope, that limits the amount of light passing through a lens or onto a mirror.

b. The diameter of such an opening, often expressed as an f-number.

c. The diameter of the objective of a telescope.

[Middle English, from Latin apertūra, from apertus, past participle of aperīre, to open; see wer- in Indo-European roots.]

ap′er·tur′al adj.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

aperture

(ˈæpətʃə)

1. a hole, gap, crack, slit, or other opening

2. (General Physics) physics

a. a usually circular and often variable opening in an optical instrument or device that controls the quantity of radiation entering or leaving it

b. the diameter of such an opening. See also relative aperture

[C15: from Late Latin apertūra opening, from Latin aperīre to open]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ap•er•ture

(ˈæp ər tʃər)

n.

1. an opening, as a hole, slit, or gap.

2. Also called ap′erture stop`. an opening, usu. circular, that limits the quantity of light that can enter an optical instrument, as the lens of a camera.

[1400–50; late Middle English < Latin apertūra=apert(us), past participle of aperīre to open (see aperient) + -ūra -ure]

ap′er•tured, adj.

ThesaurusAntonymsRelated WordsSynonymsLegend:

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Noun	1.	aperture - a device that controls amount of light admitted camera, photographic camera - equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) regulator - any of various controls or devices for regulating or controlling fluid flow, pressure, temperature, etc. telescope, scope - a magnifier of images of distant objects
	2.	aperture - a natural opening in something eye, oculus, optic - the organ of sight pupil - the contractile aperture in the center of the iris of the eye; resembles a large black dot hole - an opening into or through something micropyle - minute opening in the wall of an ovule through which the pollen tube enters stoma, stomate, pore - a minute epidermal pore in a leaf or stem through which gases and water vapor can pass
	3.	aperture - an man-made opening; usually small embouchure, mouthpiece - the aperture of a wind instrument into which the player blows directly mouthpiece - a part that goes over or into the mouth of a person; "the mouthpiece of a respirator" opening - a vacant or unobstructed space that is man-made; "they left a small opening for the cat at the bottom of the door"

aperture

noun opening, space, hole, crack, gap, rent, passage, breach, slot, vent, rift, slit, cleft, eye, chink, fissure, orifice, perforation, eyelet, interstice Through the aperture he could see daylight.

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

aperture

noun

An open space allowing passage:

hole, mouth, opening, orifice, outlet, vent.

Translations

ثقبثُقْب، فَتْحَهفَتْحَة عَدَسَة الكاميرا

clonadíraotvorštěrbina

åbningaperturblændeåbninghul

Öffnung Blende Blendenzahl

άνοιγμα

apertura orificio

aukkoreikä

ouverture

otvor

lencsenyílás

gat, opljósop

abboccatura apertura apertura diaframma fessura

開口部

구멍

diafragmaplyšys

atvērumscaurumssprauga

svetelnosť

öppning

ช่อง

açıklık aralık delikdiyafram açıklığıyarık

lỗ hổng

光圈孔孔径小孔

aperture

[ˈæpətʃjʊəʳ] N

1. (= crack) → rendija f, resquicio m

2. (Phot) → abertura f

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

aperture

[ˈæpə^rtʃə^r] n

(= opening) → orifice m, ouverture f

(PHOTOGRAPHY) [camera] → ouverture f (du diaphragme)

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

aperture

n → Öffnung f; (Phot) → Blende f

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

aperture

[ˈæpətʃjʊəʳ] n → fessura (Phot) → apertura

aperture

(ˈӕpətjuə) noun

1. an opening or hole.

2. (the size of) the opening (eg in a camera) through which light passes.

aperture

→ ثقب štěrbina åbning Öffnung άνοιγμα apertura, orificio aukko ouverture otvor fessura 開口部 구멍 opening åpning otwór abertura отверстие öppning ช่อง açıklık lỗ hổng 小孔

ap·er·ture

n. apertura, abertura, paso, boquete.

References in classic literature ?

The explosion soon followed; the upper rock was lifted from its base by the terrific force of the powder; the lower one flew into pieces; thousands of insects escaped from the aperture Dantes had previously formed, and a huge snake, like the guardian demon of the treasure, rolled himself along in darkening coils, and disappeared.

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In the trap-door itself was found a square aperture cut in the wood, apparently with some exceedingly sharp instrument, just behind the bolt which fastened the door on the inner side.

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Carthoris tried to support Thuvia, but himself commenced to slide and slip toward the ever-enlarging aperture.

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On the floor beside the aperture lay a headless male body of almost heroic proportions, and on either side of this stood a heavily armed warrior, with drawn sword.

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Here there was a little more light, for the high-up aperture over the door opened to the air.

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When the oat-spry horse had hedged a little his first spurt of speed Jerry broke the lid of his cab and called down through the aperture in the voice of a cracked megaphone, trying to please:

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The little pink sloth-creature was still blinking at me when my Ape-man reappeared at the aperture of the nearest of these dens, and beckoned me in.

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He tried to pass his body through the aperture, but not being like the frog in the fable, who thought he was larger than he really was, he found he must take out three or four more before he could get through.

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The first face which appeared at the aperture, with eyelids turned up to the reds, a mouth open like a maw, and a brow wrinkled like our hussar boots of the Empire, evoked such an inextinguishable peal of laughter that Homer would have taken all these louts for gods.

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A few yards from the storeroom a ladder rose from the corridor through an aperture in the ceiling.

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It showed no aperture in the mighty walls other than the tiny door at which I sank exhausted, nor was there any sign of life about it.

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Glancing upward, I saw the aperture, a small blue disk, in which a star was visible, while little Weena's head showed as a round black projection.