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Thumbscrew :: Thumbscrew (n.) A screw having a flat-sided or knurled head, so that it may be turned by the thumb and forefinger..

Screw :: Screw (n.) An instructor who examines with great or unnecessary severity; also, a searching or strict examination of a student by an instructor..

Drill Press :: Drill press () A machine for drilling holes in metal, the drill being pressed to the metal by the action of a screw..

Water Snail :: Water snail () The Archimedean screw.

Chase :: Chase (v. t.) To cut, so as to make a screw thread..

Conveyor :: Conveyor (n.) A contrivance for carrying objects from place to place; esp., one for conveying grain, coal, etc., -- as a spiral or screw turning in a pipe or trough, an endless belt with buckets, or a truck running along a rope..

Jack :: "Jack (n.) A portable machine variously constructed, for exerting great pressure, or lifting or moving a heavy body through a small distance. It consists of a lever, screw, rack and pinion, hydraulic press, or any simple combination of mechanical powers, working in a compact pedestal or support and operated by a lever, crank, capstan bar, etc. The name is often given to a jackscrew, which is a kind of jack..

Breech Screw :: Breech screw () A strong iron or steel plug screwed into the breech of a musket or other firearm, to close the bottom of the bore..

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

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

Strombus :: Strombuliform (a.) Coiled into the shape of a screw or a helix.

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

Water Screw :: Water screw () A screw propeller.

Terminal :: Terminal (n.) Either of the ends of the conducting circuit of an electrical apparatus, as an inductorium, dynamo, or electric motor, usually provided with binding screws for the attachment of wires by which a current may be conveyed into or from the machine; a pole..

Tap :: Tap (v. t.) To form an internal screw in (anything) by means of a tool called a tap; as, to tap a nut..

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..

Screw-driver :: Screw-driver (n.) A tool for turning screws so as to drive them into their place. It has a thin end which enters the nick in the head of the screw.

Countersink :: Countersink (n.) An enlargement of the upper part of a hole, forming a cavity or depression for receiving the head of a screw or bolt..

Countersink :: Countersink (v. t.) To chamfer or form a depression around the top of (a hole in wood, metal, etc.) for the reception of the head of a screw or bolt below the surface, either wholly or in part; as, to countersink a hole for a screw..

Jackscrew :: "Jackscrew (n.) A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5..

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