aperture

noun

ap·er·ture ˈa-pər-ˌchu̇r How to pronounce aperture (audio)

ˈa-pə-,

-chər,

-ˌtyu̇r,

-ˌtu̇r

: an opening or open space : hole

entered the cave through a narrow aperture

: the opening in a photographic lens that admits the light

: the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument

: the diameter of the objective lens or mirror of a telescope

Synonyms

hole
opening
orifice
perforation

See all Synonyms & Antonyms

Example Sentences

We entered the cave through a narrow aperture. The photograph was taken using a fast shutter speed and a large aperture.

Recent Examples on the Web After Hours character endures an extension of that briefly glimpsed metamorphosis, culminating in the monstrous reveal of a giant, red-jacketed man-toad bursting from an aperture in the wall.

Chris Eggertsen, Billboard, 9 Sep. 2022 The new TrueDepth front-facing camera, meanwhile, has a faster f/1.9 aperture, plus, for the first time, autofocus.

Samuel Axon And Scharon Harding, Ars Technica, 7 Sep. 2022 The widening of Hollywood’s aperture doesn’t just involve telling more female-focused tales.

Brent Lang, Variety, 28 July 2022 Designed to be installed at the main shutoff valve of a home or business, the small, metal washer has a center aperture that measures just one-sixteenth of an inch in diameter.

Los Angeles Times, 7 June 2022 The Pixel 6a features an 8MP lens with an f/2.0 aperture.

PCMAG, 2 Aug. 2022 Outside of resolution, the Pixel 6 Pro's 26mm lens has an f/1.85 aperture.

PCMAG, 2 Aug. 2022 The aperture is 15 feet from the condemned, situated in a corner of the room, according to a memo released last month by the prisons agency.

Meg Kinnard, ajc, 23 Apr. 2022 Kuo said at the time that the selfie camera will support autofocus and come with an f/1.9 aperture.

Chris Smith, BGR, 13 June 2022 See More

Word History

Etymology

Middle English, borrowed from Latin apertūra, from apertus, past participle of aperīre "to open" + -ūra -ure — more at aperient

First Known Use

15th century, in the meaning defined at sense 1

单词	aperture
释义	aperture noun ap·er·ture ˈa-pər-ˌchu̇r ˈa-pə-, -chər, -ˌtyu̇r, -ˌtu̇r 1 : an opening or open space : hole entered the cave through a narrow aperture 2 a : the opening in a photographic lens that admits the light b : the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument c : the diameter of the objective lens or mirror of a telescope Synonyms hole opening orifice perforation See all Synonyms & Antonyms Example Sentences We entered the cave through a narrow aperture. The photograph was taken using a fast shutter speed and a large aperture. Recent Examples on the Web After Hours character endures an extension of that briefly glimpsed metamorphosis, culminating in the monstrous reveal of a giant, red-jacketed man-toad bursting from an aperture in the wall. Chris Eggertsen, Billboard, 9 Sep. 2022 The new TrueDepth front-facing camera, meanwhile, has a faster f/1.9 aperture, plus, for the first time, autofocus. Samuel Axon And Scharon Harding, Ars Technica, 7 Sep. 2022 The widening of Hollywood’s aperture doesn’t just involve telling more female-focused tales. Brent Lang, Variety, 28 July 2022 Designed to be installed at the main shutoff valve of a home or business, the small, metal washer has a center aperture that measures just one-sixteenth of an inch in diameter. Los Angeles Times, 7 June 2022 The Pixel 6a features an 8MP lens with an f/2.0 aperture. PCMAG, 2 Aug. 2022 Outside of resolution, the Pixel 6 Pro's 26mm lens has an f/1.85 aperture. PCMAG, 2 Aug. 2022 The aperture is 15 feet from the condemned, situated in a corner of the room, according to a memo released last month by the prisons agency. Meg Kinnard, ajc, 23 Apr. 2022 Kuo said at the time that the selfie camera will support autofocus and come with an f/1.9 aperture. Chris Smith, BGR, 13 June 2022 See More Word History Etymology Middle English, borrowed from Latin apertūra, from apertus, past participle of aperīre "to open" + -ūra -ure — more at aperient First Known Use 15th century, in the meaning defined at sense 1 Kids Definition aperture noun ap·er·ture ˈa-pər-ˌchu̇r : an opening or open space : hole Medical Definition aperture noun ap·er·ture ˈap-ə(r)-ˌchu̇(ə)r, -chər, -ˌt(y)u̇(ə)r 1 : an opening or open space 2 : the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument aperture noun as in hole a place in a surface allowing passage into or through a thing you can adjust the aperture on this camera's lens by pushing this button Synonyms & Similar Words Relevance hole opening orifice slit crevice perforation fissure space slot crack inlet pinhole pore gash cleft loophole entrance intake rift vent slash rupture notch keyhole outlet tear punch split exit breach puncture cut mouth chink cranny buttonhole rent peephole airhole break wormhole knothole pothole pinprick armhole Antonyms & Near Antonyms seal patch plug filling obstruction barrier stopper filler fill obstacle blockage See More
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aperture

noun

Synonyms

Example Sentences

Word History

Kids Definition

noun

Medical Definition

noun

noun