Definition of screw
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Screw (n.) A cylinder, or a cylindrical perforation, having a continuous rib, called the thread, winding round it spirally at a constant inclination, so as to leave a continuous spiral groove between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male screw, or,
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Corkscrew ::
Corkscrew (v. t.) To press forward in a winding way; as, to corkscrew one's way through a crowd..
Stock ::
Stock (n.) A handle or wrench forming a holder for the dies for cutting screws; a diestock.
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.
Auger ::
Auger (n.) A carpenter's tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge..
Garrote ::
Garrote (n.) A Spanish mode of execution by strangulation, with an iron collar affixed to a post and tightened by a screw until life become extinct; also, the instrument by means of which the punishment is inflicted..
Helix ::
Helix (n.) A nonplane curve whose tangents are all equally inclined to a given plane. The common helix is the curve formed by the thread of the ordinary screw. It is distinguished from the spiral, all the convolutions of which are in the plane..
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..
Screw ::
Screw (n.) An unsound or worn-out horse, useful as a hack, and commonly of good appearance..
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 ::
Screw (n.) Specifically, a kind of nail with a spiral thread and a head with a nick to receive the end of the screw-driver. Screws are much used to hold together pieces of wood or to fasten something; -- called also wood screws, and screw nails. See also Screw bolt, below..
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.
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 (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..
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..
Screw ::
Screw (v. i.) To turn one's self uneasily with a twisting motion; as, he screws about in his chair..
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