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TOEFL BNC: 15655 COCA: 12567

aperture

1 ENTRIES FOUND:
aperture /ˈæpɚtʃɚ/ noun
plural apertures
aperture
/ˈæpɚtʃɚ/
noun
plural apertures
Learner's definition of APERTURE
[count]
formal : a hole or small opening in something洞;小孔;缝隙
technical : an opening that controls the amount of light that passes through a lens (such as a camera lens)(照相机镜头等的)光圈,孔径
TOEFL BNC: 15655 COCA: 12567

aperture

noun

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

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

Time Traveler
The first known use of aperture was in the 15th century
TOEFL BNC: 15655 COCA: 12567

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