aperture

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Related to Aperature: Depth of field, Shutter speed

ap·er·ture

 (ăp′ər-chər)
n.
1. An opening, such as a hole, gap, or slit.
2.
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)
n
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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.aperture - a device that controls amount of light admittedaperture - 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 somethingaperture - 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 openingaperture - 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"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

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:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
ثقبثُقْب، فَتْحَهفَتْحَة عَدَسَة الكاميرا
clonadíraotvorštěrbina
åbningaperturblændeåbninghul
aukkoreikä
otvor
lencsenyílás
gat, opljósop
開口部
구멍
diafragmaplyšys
atvērumscaurumssprauga
svetelnosť
öppning
ช่อง
açıklıkaralıkdelikdiyafram açıklığıyarık
lỗ hổng

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

[ˈæpərtʃər] n
(= opening) → orifice m, ouverture f
(PHOTOGRAPHY) [camera] → ouverture f (du diaphragme)
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

aperture

nÖffnung 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] nfessura (Phot) → apertura
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

aperture

(ˈӕpətjuə) noun
1. an opening or hole.
2. (the size of) the opening (eg in a camera) through which light passes.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

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
Multilingual Translator © HarperCollins Publishers 2009

ap·er·ture

n. apertura, abertura, paso, boquete.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
While the spacecraft carried seven foreign instruments which were, Chandrayaan-I X-ray Spectrometer (CIXS), Near-Infrared Spectrometer (SIR - 2), Sub keV Atom Reflecting Analyzer (SARA), Miniature Synthetic Aperature Radar (Mini SAR), Moon Mineralogy Mapper (M3) and a Radiation Dose Monitor (RADOM).
SAOCOM 1A carries a high-resolution instrument called a synthetic aperature radar that will be used for emergency management during disasters and for land monitoring.
Art of Aperature Photography leased 1,072 square feet at 102 and 103 First St.
As in the rifle event, the team shoots simultaneously knocking down 50 round aperature targets from 25 to 80 yards ranging in aperture size from 2 to 4 inches.
Notice that the three wavelets that have been propagating for times t1, t2 and t3 each remain perfectly aligned with each other and with the center of the laser because the aperature assures that their velocity component in the orthogonal direction is exactly v.
The LVS-9570 is able to verify linear (1D) and two-dimensional (2D) codes; autodiscriminate the symbology, narrow bar width, and aperature to be used to evaluate the code; and highlight trouble spots in the code.
The velarium is an annular flap of swim muscle extending to the bell opening that serves to shape the aperature during a swim contraction, much like the velum in hydromedusae (Gladfelter, 1972, 1973).
[9.] Soumekh, M., Synthetic Aperature Radar Signal Processing with MATLAB Algorithms, John Wiley, New York, 1999.
Grains prolate-spheroidal, contour sub-triangular, small to medium, granulate, testate, colpi and pores distant , colpi 2-7(mu)m wide and more than the length of polar axis ,spherical , variable in diameter 3.6-4.6(mu)m and an gulo aperature. Isopolar.
There is clionid damage on ground and chipped surfaces--primarily, but not exclusively, on the ventral surface (aperature side) of the shell.