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An instrument, first used in the East, made of an alloy of copper and tin, shaped like a disk with upturned rim, and producing, when struck, a harsh and resounding noise. O'er distant deserts sounds the Tartar gong. Longfellow.

An instrument for measuring angles, especially the angles of crystals, or the inclination of planes. Contact, or Hand, goniometer, a goniometer having two movable arms (ab, cd), between which (at ab) the faces of the crystals are placed. These arms turn about a fixed point, which is the center of the graduated circle o…

An instrument of gaming; a sort of dice. [Obs.] Beau. & Fl.

To pierce or wound, as with a horn; to penetrate with a pointed instrument, as a spear; to stab. The low stumps shall gore His daintly feet. Coleridge.

A cutting instrument used in lithotomy.

e, for scooping or cutting holes, channels, or grooves, in wood, stone, etc.; a similar instrument, with curved edge, for turning wood.

An instrument for clutching objects for the purpose of raising them; -- specially applied to devices for withdrawing drills, etc., from artesian and other wells that are drilled, bored, or driven. Grab hag, at fairs, a bag or box holding small articles which are to be drawn, without being seen, on payment of a small su…

The marks on an instrument or vessel to indicate degrees or quantity; a scale.

One who determines or indicates graduation; as, a graduator of instruments.

An instrument by which grafting is facilitated.

An instrument for recording, preserving, and reproducing sounds, the record being a tracing of a phonautograph etched in some solid material. Reproduction is accomplished by means of a system attached to an elastic diaphragm.

the mechanism is introduced in the most effective manner, regardless of the size of the instrument. -- Grand relief (Sculp.), alto relievo. -- Grand Seignior. See under Seignior. -- Grand stand, the principal stand, or erection for spectators, at a, race course, etc. -- Grand vicar (Eccl.), a principal vicar; an ec…

An optical instrument for magnifying engravings, photographs, etc., usually having one large lens and two smaller ones.

hor, with four or five flukes or claws, used to hold boats or small vessels; hence, any instrument designed to grapple or hold; a grappling iron; a grab; -- written also grapline, and crapnel.

An instrument, usually with hinged claws, for seizing and holding fast to an object; a grab. (b) (Naut.)

One who, or that which, grates; especially, an instrument or utensil with a rough, indented surface, for rubbing off small particles of any substance; as a grater for nutmegs.

(Physics) An instrument for ascertaining the specific gravity of bodies.

A handsome tropical American wood, much used for making flutes and other wind instruments; -- called also Grenada cocos, or cocus, and red ebony.

edge, surface, or channel, for giving direction to the motion of anything, as water, an instrument, or part of a machine, or for directing the hand or eye, as of an operator; as:

Any machine or instrument for cutting or shearing, resembling in its action a guillotine.