What is the meaning of Aperture?

(n.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture.
(n.) An opening; an open space; a gap, cleft or chasm; a passage perforated; a hole; as, an aperture in a wall.
(n.) The act of opening.

Webster's Revised Unabridged Dictionary

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APA	Webster's. (2011). aperture. Retrieved September 23, 2026, from http://smartdefine.org/aperture/definitions/1974782
Chicago	Webster's. 2011. "aperture" http://smartdefine.org/aperture/definitions/1974782 (accessed September 23, 2026).
Harvard	Webster's 2011, aperture, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/aperture/definitions/1974782>.
MLA	Webster's. "aperture" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/aperture/definitions/1974782>

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