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The outer branch of the legs in certain Crustacea. See Maxilliped.

The region between the antennæ and the mouth, in Crustacea.

tozoön. Among them are the lice, ticks, many acari, the lerneans, or fish lice, and other crustaceans.

violent throwing out of flames, lava, etc., as from a volcano of a fissure in the earth's crust. (b) A sudden and overwhelming hostile movement of armed men from one country to another. Milton. (c) A violent commotion. All Paris was quiet . . . to gather fresh strength for the next day's eruption. W. Irving.…

A dry slough, crust, or scab, which separates from the healthy part of the body, as that produced by a burn, or the application of caustics.

A genus of Bryozoa which produce delicate corals, often incrusting like lichens, but sometimes branched.

The external branch of the appendages of Crustacea.

casting off of some part, more particularly, the outer cuticular layer, as the shells of crustaceans, skins of snakes, etc.; molting; ecdysis.

One of the movable peduncles which, in the decapod Crustacea, bear the eyes at the tip.

One of the numerous small eyes which make up the compound eyes of insects and crustaceans.

ries in their midnight dances. -- Fairy shrimp (Zoöl.), a European fresh-water phyllopod crustacean (Chirocephalus diaphanus); -- so called from its delicate colors, transparency, and graceful motions. The name is sometimes applied to similar American species. -- Fairy stone (Paleon.), an echinite.

A lashlike appendage of a crustacean, esp. the terminal ortion of the antennæ and the epipodite of the maxilipeds. See Maxilliped.

The stem which supports which supports the eye in decapod Crustacea; eyestalk.

To incrust (the bore of a gun) with burnt powder in the process of firing.

An upward bend or flexure of a considerable portion of the earth's crust, resulting in the formation of a class of mountain elevations called anticlinoria; -- opposed to geosynclinal.

study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. --Ge`o*chem"ist (#), n.

the downward bend or subsidence of the earth's crust, which allows of the gradual accumulation of sediment, and hence forms the first step in the making of a mountain range; -- opposed to geanticlinal.

To incrust, cover, or overlay with a thin surface, consisting of, or resembling, glass; as, to glaze earthenware; hence, to render smooth, glasslike, or glossy; as, to glaze paper, gunpowder, and the like. Sorrow's eye glazed with blinding tears. Shak.

The glass, glasslike, or glossy substance with which any surface is incrusted or overlaid; as, the glazing of pottery or porcelain, or of paper.

sight, a form of front sight placed on target rifles. -- Globe slater (Zoöl.), an isopod crustacean of the genus Spheroma. -- Globe thistle (Bot.), a thistlelike plant with the flowers in large globular heads (Cynara Scolymus); also, certain species of the related genus Echinops. -- Globe valve. (a) A ball valve. (b…