- 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.
Origin of aperture
Examples from the Web for aperture
Its 8-megapixel camera, inclusive of true-tone and dual-LED f/2.2 aperture flashes, features optical image stabilization.Why Every Home Needs a Drone This Holiday
December 8, 2014
“Administration officials favorite phrase these days is that, ‘you have to widen the aperture,’” says Bockenfeld.Obama To Cut Middle East Democracy Programs
January 2, 2014
His book of essays, Photography After Frank , was recently published by Aperture.Hai Bo and China's Photography Boom
January 20, 2011
His book of essays, Photography After Frank, was recently published by Aperture.Pulp Fictions
September 10, 2009
But as this image shows, the nails actually went through an aperture in the wrists.10 Reasons the Resurrection Really Happened
April 10, 2009
Then I stops the aperture below, by putting the chest agin it.Life And Adventures Of Martin Chuzzlewit
Then the aperture was closed with tiles or marble slabs, carefully cemented.The Three Cities Trilogy, Complete
The third was with the same instrument and aperture, but with a power of 460.Sir William Herschel: His Life and Works
Edward Singleton Holden
Together, shoulder to shoulder, we gazed through the aperture.The Floating Island of Madness
This Naka Machi had tossed into the aperture where the ape skin had been destroyed.The Mind Master
Arthur J. Burks
- a hole, gap, crack, slit, or other opening
- 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
Word Origin and History for aperture
early 15c., from Latin apertura "an opening," from apertus, past participle of aperire "to open" (see overt).
- 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.