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

- stops and diaphragms are called apertures, even when they are not the aperture stop of the system. The word aperture is also used in other contexts to...
- ventricle of the human brain, which also has a single median aperture. The two lateral apertures provide a conduit for cerebrospinal fluid to flow from the...
- numerical apertures collect more light and will generally provide a brighter image, but will provide shallower depth of field. Numerical aperture is used...
- subarachnoid space) via three openings: the single median aperture and the two lateral apertures. It is ultimately reabsorbed into the venous system via...
- Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a setting on some cameras that allows the user to set a specific...
- can p**** through. Aperture may also refer to: In anatomy, a number of apertures in the human body: Apertura nasalis posterior Apertura pelvis inferior...
- The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or...
- pelvis is very irregular; the space enclosed by it is named the inferior aperture or pelvic outlet. It is an important component of pelvimetry. It has the...
- invisibility (hence "ghost"), to target aperture sights that use large disks or other occluders with pinhole-sized apertures. In general, the thicker the ring...
- 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...
Loading...