Synonyms: opening, space, hole, crack More Synonyms of aperture
2. countable noun
In photography, the aperture of a camera is the size of the hole through which light passes to reach the film.
Use a small aperture and position the camera carefully.
The camera has a 32mm lens with a maximum aperture of f/4.5.
aperture in British English
(ˈæpətʃə)
noun
1.
a hole, gap, crack, slit, or other opening
2. 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
Word origin
C15: from Late Latin apertūra opening, from Latin aperīre to open
aperture in American English
(ˈæpərtʃər)
noun
1.
an opening; hole; gap
2.
the opening, or the diameter of the opening, in a camera, telescope, etc. through which light passes into the lens
Word origin
L apertura < apertus, pp. of aperire, to open < IE *ap-wer-, to uncover < base *ap(o)- away + *wer- to close, cover > warn
Examples of 'aperture' in a sentence
aperture
Quickly he ducked down behind the ladder; now he was completely out of sight of the aperture above him.
MacNeill, Alastair THE DEVIL'S DOOR (2001)
The canvas awning had been secured over the back of the vehicle, and the only aperture was the flap at the rear.
MacNeill, Alastair THE DEVIL'S DOOR (2001)
As the aperture of light was diminishing he put his hand round the door jamb.
Meek, M R D A WORM OF DOUBT (2001)
In other languages
aperture
British English: aperture /ˈæpətʃə/ NOUN
An aperture is a narrow hole or gap.
Through the aperture he could see daylight.
American English: aperture
Arabic: ثقب
Brazilian Portuguese: abertura
Chinese: 小孔
Croatian: otvor
Czech: štěrbina
Danish: åbning
Dutch: opening
European Spanish: orificio
Finnish: aukko
French: ouverture
German: Öffnung
Greek: άνοιγμα
Italian: fessura
Japanese: 開口部
Korean: 구멍
Norwegian: åpning
Polish: otwór
European Portuguese: abertura
Romanian: deschizătură
Russian: отверстие
Latin American Spanish: apertura
Swedish: öppning
Thai: ช่อง
Turkish: açıklık aralık
Ukrainian: апертура
Vietnamese: lỗ hổng
All related terms of 'aperture'
aperture priority
an automatic exposure system in which the photographer selects the aperture and the camera then automatically sets the correct shutter speed
aperture synthesis
an array of radio telescopes used in radio astronomy to simulate a single large-aperture telescope. Some such instruments use movable dishes while others use fixed dishes
numerical aperture
a measure of the resolving power of a microscope , equal to the index of refraction of the medium in which the object is placed multiplied by the sine of the angle made with the axis by the most oblique ray entering the instrument, the resolving power increasing as the product increases
relative aperture
the ratio of the equivalent focal length of a lens to the effective aperture of the lens; written as f /n, f:n , or fn , where n is the numerical value of this ratio and is equivalent to the f-number
shadow mask
a perforated metal sheet mounted close to the phosphor-dotted screen in some colour television tubes . The holes are positioned so that each of the three electron beams strikes the correct phosphor dot , producing the required colour mixture in the image
aperture for drilling fluid
An aperture for drilling fluid is an opening for controlling the flow of drilling mud .
Chinese translation of 'aperture'
aperture
(ˈæpətʃjuəʳ)
n(c)
(frm, = hole, gap) 孔 (kǒng) (个(個), gè)
(Phot) 孔径(徑) (kǒngjìng)
(noun)
Definition
a hole or opening
Through the aperture he could see daylight.
Synonyms
opening
He squeezed through an opening in the fence.
space
The space underneath could be used as a storage area.
hole
They got in through a hole in the wall.
kids with holes in the knees of their jeans
crack
She watched him though a crack in the curtains.
gap
the wind tearing through gaps in the window frames
rent
welling up from a rent in the ground
passage
cells that line the air passages
breach
A large battering ram hammered a breach in the wall.
slot
He dropped a coin in the slot and dialled.
vent
There was a small air vent in the ceiling.
rift
In the open bog are many rifts and potholes.
slit
She watched them through a slit in the curtain.
cleft
a narrow cleft in the rocks too small for a human to squeeze through
eye
chink
He peered through a chink in the curtains.
fissure
There was a great crack, and a fissure opened up.
orifice
Viruses get into the body via any convenient orifice.