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...

Rime :: Rime (n.) A rent or long aperture; a chink; a fissure; a crack.

Spiracular :: Spiracle (n.) Any small aperture or vent for air or other fluid.

Operculum :: Operculum (n.) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda..

Clepsydra :: Clepsydra (n.) A water clock; a contrivance for measuring time by the graduated flow of a liquid, as of water, through a small aperture. See Illust. in Appendix..

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..

Hourglass :: Hourglass (n.) An instrument for measuring time, especially the interval of an hour. It consists of a glass vessel having two compartments, from the uppermost of which a quantity of sand, water, or mercury occupies an hour in running through a small aperture unto the lower..

Perforation :: Perforation (n.) A hole made by boring or piercing; an aperture.

Effuse :: Effuse (a.) Having the lips, or edges, of the aperture abruptly spreading; -- said of certain shells..

Epiphragm :: Epiphragm (n.) A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation..

Mouth :: Mouth (n.) The opening through which an animal receives food; the aperture between the jaws or between the lips; also, the cavity, containing the tongue and teeth, between the lips and the pharynx; the buccal cavity..

Machicolation :: Machicolation (n.) The act of discharging missiles or pouring burning or melted substances upon assailants through such apertures.

Rima :: Rima (n.) A narrow and elongated aperture; a cleft; a fissure.

Opening :: Opening (n.) A place which is open; a breach; an aperture; a gap; cleft, or hole..

Stomatopod :: Stomatoplastic (a.) Of or pertaining to the operation of forming a mouth where the aperture has been contracted, or in any way deformed..

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..

Imperforated :: Imperforated (a.) Not perforated; having no opening or aperture.

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..

Slot :: Slot (n.) A narrow depression, perforation, or aperture; esp., one for the reception of a piece fitting or sliding in it..

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

Resonator :: Resonator (n.) Anything which resounds; specifically, a vessel in the form of a cylinder open at one end, or a hollow ball of brass with two apertures, so contrived as to greatly intensify a musical tone by its resonance. It is used for the study and analysis of complex sounds..

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