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...

Aperture :: Aperture (n.) The act of opening.

Rove :: Rove (v. t.) To draw through an eye or aperture.

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..

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..

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

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..

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..

Embrasure :: Embrasure (n.) An aperture with slant sides in a wall or parapet, through which cannon are pointed and discharged; a crenelle. See Illust. of Casemate..

Pupil :: Pupil (n.) The aperture in the iris; the sight, apple, or black of the eye. See the Note under Eye, and Iris..

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

Turritella :: Turritella (n.) Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum..

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

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

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..

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

Cyclostoma :: Cyclostoma (n. pl.) A division of Bryozoa, in which the cells have circular apertures..

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

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

Slide :: Slide (n.) A cover which opens or closes an aperture by sliding over it.

Overture :: Overture () An opening or aperture; a recess; a recess; a chamber.

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