aperture
ap·er·ture
noun \ˈap-ə(r)-ˌchu̇r, -chər, -ˌtyu̇r, -ˌtu̇r\Definition of APERTURE
1
: an opening or open space : hole
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
Examples of APERTURE
- We entered the cave through a narrow aperture.
- The photograph was taken using a fast shutter speed and a large aperture.
Origin of APERTURE
Middle English, from Latin apertura, from apertus, past participle of aperire to open
First Known Use: 15th century
Related to APERTURE
- Synonyms
- hole, opening, orifice, perforation
Rhymes with APERTURE
amateur, armature, blackamoor, carrefour, carte du jour, coinsure, commissure, confiture, connoisseur, coverture, curvature, cynosure, embouchure, epicure, filature, forfeiture, garniture, geniture, green-manure, haute couture, immature, insecure, ligature, manicure, overture, paramour, pedicure, plat du jour, portraiture, prelature, premature, quadrature, reassure, Reaumur, reinsure, saboteur, sepulture, sequitur, signature, simon-pure, sinecure, soup du jour, tablature, temperature, to be sure, troubadour, white amur, Yom Kippur
ap·er·ture
noun \ˈap-ə(r)-ˌchu̇(ə)r, -chər, -ˌt(y)u̇(ə)r\ (Medical Dictionary)Medical Definition of APERTURE
1
: an opening or open space
2
: the diameter of the stop in an optical system that determines the diameter of the bundle of rays traversing the instrument
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