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.

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]

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:
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"

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.

aperture

noun
An open space allowing passage:
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

aperture

[ˈæpərtʃər] n
(= opening) → orifice m, ouverture f
(PHOTOGRAPHY) [camera] → ouverture f (du diaphragme)

aperture

nÖffnung f; (Phot) → Blende f

aperture

[ˈæpətʃjʊəʳ] nfessura (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 periodicals archive ?
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).
Synthetic Aperature Radar Signal Processing with MATLAB Algorithms, John Wiley, New York, 1999.
The Massim artifacts (Type 1) have a hole in the spire cap, the inner whorls have been removed and the upper part of the body whorl has been cut at right angles to the aperature.
It enters principally through stomatal openings and influx is mainly a diffusive flux dependent on stomatal aperature [7].
Previously, particles smaller than 50 nanometers could not be resolved in the 15-nanosecond exposure because of the limited signal and low contrast without ADF aperature.