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The aperture in a block through which the rope reeves. Ham. Nav. Encyc. Swallow plover (Zoöl.), any one of several species of fork-tailed ploverlike birds of the genus Glareola, as G. orientalis of India; a pratincole. -- Swallow shrike (Zoöl.), any one of several species of East Indian and Asiatic birds of the family…

A hole; an aperture. [Obs.]

A smooth triangular area on the inner surface of the bladder, limited by the apertures of the ureters and urethra.

An aperture in a tromp.

mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum.

e; to scintillate. These stars not twinkle when viewed through telescopes that have large apertures. Sir I. Newton. The western sky twinkled with stars. Sir W. Scott.

Either one of the two apertures in the calamus of a feather.

A lid, plug, or cover, applied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid.

A small aperture; a hole or passage for air or any fluid to escape; as, the vent of a cask; the vent of a mold; a volcanic vent. Look, how thy wounds do bleed at many vents. Shak. Long't was doubtful, both so closely pent, Which first should issue from the narrow vent. Pope.

o the genus Vertigo, having an elongated or conical spiral shell and usually teeth in the aperture.

A small bottle, usually of glass; a little glass vessel with a narrow aperture intended to be closed with a stopper; as, a vial of medicine. [Written also phial.] Take thou this vial, being then in bed, And this distilled liquor thou off. Shak.

tographers in printing vignettes, consisting of a screen of paper or glass with a central aperture the edges of which become opaque by intensible gradations.

specially of some loose, fibrous substance, used for various purposes, as for stopping an aperture, padding a garment, etc. Wed hook, a rod with a screw or hook at the end, used for removing the wad from a gun.

ance cut in or beside a door or gate, or the door which is used to close such entrance or aperture. Piers Plowman. "Heaven's wicket." Milton. And so went to the high street, . . . and came to the great tower, but the gate and wicket was fast closed. Ld. Berners. The wicket, often opened, knew the key. Dryden.…