Lexic.us

Definition of Aperture

1. Noun. A device that controls amount of light admitted.

2. Noun. A natural opening in something.

3. Noun. An man-made opening; usually small.

Definition of Aperture

1. n. The act of opening.

Definition of Aperture

1. Noun. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. ¹

2. Noun. (optics) Something which restricts the diameter of the light path through one plane in an optical system. ¹

3. Noun. (context: astronomy photography) The diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens. e.g. a telescope may have a 100 cm aperture. ¹

4. Noun. (mathematics rare of a right circular cone) The maximum angle between the two generatrices. ¹

¹ Source: wiktionary.com

Definition of Aperture

1. an opening [n -S] - See also: opening

Medical Definition of Aperture

1. The opening in an optical system which restricts the size of the bundle of rays incident on a given surface. (Usually circular and specified by diameter.) (09 Oct 1997)

Lexicographical Neighbors of Aperture

apertura externa aqueductus vestibuli apertura externa canaliculi cochleae apertura lateralis ventriculi quarti apertura mediana ventriculi quarti apertura piriformis apertura sinus frontalis apertura sinus sphenoidalis apertura thoracis inferior apertura thoracis superior apertura tympanica canaliculi chordae tympani

apertural aperturate aperture (current term) aperture correction aperture diaphragm aperture for electron microscopy aperture function aperture membrane aperture of mastoid antrum aperture of orbit

aperture plane apertured apertures apery apes

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