aperture
[ap-er-cher]
- an opening, as a hole, slit, crack, gap, etc.
- Also called aperture stop. Optics. an opening, usually circular, that limits the quantity of light that can enter an optical instrument.
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Origin of aperture
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for aperture
Contemporary Examples
Its 8-megapixel camera, inclusive of true-tone and dual-LED f/2.2 aperture flashes, features optical image stabilization.
“Administration officials favorite phrase these days is that, ‘you have to widen the aperture,’” says Bockenfeld.
His book of essays, Photography After Frank , was recently published by Aperture.
His book of essays, Photography After Frank, was recently published by Aperture.
But as this image shows, the nails actually went through an aperture in the wrists.
Historical Examples
Then I stops the aperture below, by putting the chest agin it.
Life And Adventures Of Martin ChuzzlewitCharles Dickens
Then the aperture was closed with tiles or marble slabs, carefully cemented.
The Three Cities Trilogy, CompleteEmile Zola
The third was with the same instrument and aperture, but with a power of 460.
Sir William Herschel: His Life and WorksEdward Singleton Holden
Together, shoulder to shoulder, we gazed through the aperture.
The Floating Island of MadnessJason Kirby
This Naka Machi had tossed into the aperture where the ape skin had been destroyed.
The Mind MasterArthur J. Burks
aperture
- a hole, gap, crack, slit, or other opening
- physics
- a usually circular and often variable opening in an optical instrument or device that controls the quantity of radiation entering or leaving it
- the diameter of such an openingSee also relative aperture
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Word Origin
C15: from Late Latin apertūra opening, from Latin aperīre to open
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for aperture
n.
early 15c., from Latin apertura "an opening," from apertus, past participle of aperire "to open" (see overt).
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Online Etymology Dictionary, © 2010 Douglas Harper
aperture
(ăp′ər-chər)- An opening, such as a hole, gap, or slit.
- A usually adjustable opening in an optical instrument, such as a microscope, a camera, or a telescope, that limits the amount of light passing through a lens or onto a mirror.
- The diameter of such an opening.
- The diameter of the objective of a telescope or microscope.
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The American Heritage® Stedman's Medical Dictionary
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