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aperture (n.)

early 15c. (Chauliac), "an opening, hole, orifice," from Latin apertura "an opening," from apertus, past participle of aperire "to open, uncover," from PIE compound *ap-wer-yo- from *ap- "off, away" (see apo-) + root *wer- (4) "to cover." In optics, "the diameter of the exposed part of a telescope, microscope, etc.," from 1660s.

also from early 15c.
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Trends of aperture

updated on November 22, 2023

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