Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of aperture is as below...

Wad :: Wad (n.) A soft mass, especially of some loose, fibrous substance, used for various purposes, as for stopping an aperture, padding a garment, etc..

Mask Shell :: Mask shell () Any spiral marine shell of the genus Persona, having a curiously twisted aperture..

Apertion :: Apertion (n.) The act of opening; an opening; an aperture.

Aprocta :: Aprocta (n. pl.) A group of Turbellaria in which there is no anal aperture.

Fenestra :: Fenestra (n.) A small opening; esp., one of the apertures, closed by membranes, between the tympanum and internal ear..

Confessional :: Confessional (n.) The recess, seat, or inclosed place, where a priest sits to hear confessions; often a small structure furnished with a seat for the priest and with a window or aperture so that the penitent who is outside may whisper into the priest's ear without being seen by him or heard by others..

Pseudostoma :: Pseudostoma (n.) A group of cells resembling a stoma, but without any true aperture among them..

Lip :: Lip (n.) One of the edges of the aperture of a univalve shell.

Orifice :: Orifice (n.) A mouth or aperture, as of a tube, pipe, etc.; an opening; as, the orifice of an artery or vein; the orifice of a wound..

Stop :: Stop (n.) The closing of an aperture in the air passage, or pressure of the finger upon the string, of an instrument of music, so as to modify the tone; hence, any contrivance by which the sounds of a musical instrument are regulated..

Peritreme :: Peritreme (n.) The edge of the aperture of a univalve shell.

Labium :: Labium (n.) Inner margin of the aperture of a shell.

Stigma :: Stigma (v. t.) One of the apertures of the pulmonary sacs of arachnids. See Illust. of Scorpion.

Holostomata :: Holostomata (n. pl.) An artificial division of gastropods, including those that have an entire aperture..

Exostome :: Exostome (n.) The small aperture or foremen in the outer coat of the ovule of a plant.

Sight :: Sight (v. t.) A small aperture through which objects are to be seen, and by which their direction is settled or ascertained; as, the sight of a quadrant..

Aperture :: Aperture (n.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture..

Operculum :: Operculum (n.) Any lid-shaped structure closing the aperture of a tube or shell.

Umbilicus :: Umbilicus (n.) Either one of the two apertures in the calamus of a feather.

Chilostomata :: Chilostomata (n. pl.) An extensive suborder of marine Bryozoa, mostly with calcareous shells. They have a movable lip and a lid to close the aperture of the cells..

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