Definition of Apertures. Meaning of Apertures. Synonyms of Apertures

Here you will find one or more explanations in English for the word Apertures. Also in the bottom left of the page several parts of wikipedia pages related to the word Apertures and, of course, Apertures synonyms and on the right images related to the word Apertures.

Definition of Apertures

Aperture
Aperture Ap"er*ture (?; 135), n. [L. apertura, fr. aperire. See Aperient.] 1. The act of opening. [Obs.] 2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. An aperture between the mountains. --Gilpin. The back aperture of the nostrils. --Owen. 3. (Opt.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture. Note: The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100[deg] aperture.

Meaning of Apertures from wikipedia

- that are not the aperture stop of an optical system are also called apertures. Contexts need to clarify these terms. The word aperture is also used in...
- the amount of light that can p**** through. Aperture may also refer to: In anatomy, a number of apertures in the human body: Apertura nasalis posterior...
- for specifying relative apertures evolved in the late nineteenth century, in competition with several other systems of aperture notation. In 1867, Sutton...
- openings of the fourth ventricle are the lateral apertures - one on either side. The median aperture varies in size but accounts for most of the outflow...
- numerical apertures collect more light and will generally provide a brighter image, but will provide shallower depth of field. Numerical aperture is used...
- ranges of the apertures are disjoint. When the CPU presents a physical address within the range recognized by an aperture, the aperture unit routes the...
- Eudicots, usually have three apertures that run from the proximal side of the pollen grain to the distal side: this apertures are named colpi, and the pollen...
- closed apertures. This design decision is particularly important for sans-serif typefaces, which can have very wide strokes making the apertures very narrow...
- Nasal aperture may refer to: Posterior nasal apertures Anterior nasal aperture This disambiguation page lists articles ****ociated with the title Nasal...
- The lateral aperture, lateral aperture of fourth ventricle or foramen of Luschka (after anatomist Hubert von Luschka) is an opening at the lateral extremity...