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Screw :: Screw (n.) A steam vesel propelled by a screw instead of wheels; a screw steamer; a propeller.

Vane :: Vane (n.) Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc..

Blade :: Blade (n.) The broad part of an oar; also, one of the projecting arms of a screw propeller..

Countersink :: Countersink (v. t.) To cause to sink even with or below the surface; as, to countersink a screw or bolt into woodwork..

Machine :: Machine (n.) In general, any combination of bodies so connected that their relative motions are constrained, and by means of which force and motion may be transmitted and modified, as a screw and its nut, or a lever arranged to turn about a fulcrum or a pulley about its pivot, etc.; especially, a construction, more or less complex, consisting of a combination of moving parts, or simple mechanical elements, as wheels, levers, cams, etc., with their supports and connecting framework, calculated to

Tourniquet :: Tourniquet (n.) An instrument for arresting hemorrhage. It consists essentially of a pad or compress upon which pressure is made by a band which is tightened by a screw or other means.

Screw :: Screw (v. t.) Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.

Die :: Die (n.) A hollow internally threaded screw-cutting tool, made in one piece or composed of several parts, for forming screw threads on bolts, etc.; one of the separate parts which make up such a tool..

Backlash :: Backlash (n.) The distance through which one part of connected machinery, as a wheel, piston, or screw, can be moved without moving the connected parts, resulting from looseness in fitting or from wear; also, the jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion..

Screw :: Screw (v. t.) To examine rigidly, as a student; to subject to a severe examination..

Threader :: Threader (n.) A tool or machine for forming a thread on a screw or in a nut.

Turn-buckle :: Turn-buckle (n.) A loop or sleeve with a screw thread at one end and a swivel at the other, -- used for tightening a rod, stay, etc..

Screw :: Screw (v. i.) To turn one's self uneasily with a twisting motion; as, he screws about in his chair..

Stock :: Stock (n.) A handle or wrench forming a holder for the dies for cutting screws; a diestock.

Screwed :: Screwed (imp. & p. p.) of Scre.

Drag :: Drag (v. t.) The difference between the speed of a screw steamer under sail and that of the screw when the ship outruns the screw; or between the propulsive effects of the different floats of a paddle wheel. See Citation under Drag, v. i., 3..

Bed Screw :: Bed screw () A form of jack screw for lifting large bodies, and assisting in launching..

Gib :: Gib (n.) A piece or slip of metal or wood, notched or otherwise, in a machine or structure, to hold other parts in place or bind them together, or to afford a bearing surface; -- usually held or adjusted by means of a wedge, key, or screw..

Chaser :: Chaser (n.) A tool with several points, used for cutting or finishing screw threads, either external or internal, on work revolving in a lathe..

Washer :: Washer (n.) A ring of metal, leather, or other material, or a perforated plate, used for various purposes, as around a bolt or screw to form a seat for the head or nut, or around a wagon axle to prevent endwise motion of the hub of the wheel and relieve friction, or in a joint to form a packing, etc..

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