Definition of screw

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Screw (n.) Anything shaped or acting like a screw; esp., a form of wheel for propelling steam vessels. It is placed at the stern, and furnished with blades having helicoidal surfaces to act against the water in the manner of a screw. See Screw propeller, below..

Lern More About Screw

Clamp :: Clamp (n.) An instrument with a screw or screws by which work is held in its place or two parts are temporarily held together.
Wash :: Wash (n.) The backward current or disturbed water caused by the action of oars, or of a steamer's screw or paddles, etc..
Propeller :: Propeller (n.) A steamboat thus propelled; a screw steamer.
Tap :: Tap (v. t.) To form an internal screw in (anything) by means of a tool called a tap; as, to tap a nut..
Bed Screw :: Bed screw () A form of jack screw for lifting large bodies, and assisting in launching..
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..
Water Snail :: Water snail () The Archimedean screw.
Jackscrew :: "Jackscrew (n.) A jack in which a screw is used for lifting, or exerting pressure. See Illust. of 2d Jack, n., 5..
Screw :: Screw (n.) Anything shaped or acting like a screw; esp., a form of wheel for propelling steam vessels. It is placed at the stern, and furnished with blades having helicoidal surfaces to act against the water in the manner of a screw. See Screw propeller, below..
Screw :: Screw (n.) An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand..
Nut :: Nut (n.) A perforated block (usually a small piece of metal), provided with an internal or female screw thread, used on a bolt, or screw, for tightening or holding something, or for transmitting motion. See Illust. of lst Bolt..
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..
Well :: Well (v. i.) A vertical passage in the stern into which an auxiliary screw propeller may be drawn up out of water.
Tap :: Tap (n.) A tool for forming an internal screw, as in a nut, consisting of a hardened steel male screw grooved longitudinally so as to have cutting edges..
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..
Race :: Race (v. i.) To run too fast at times, as a marine engine or screw, when the screw is lifted out of water by the action of a heavy sea..
Blank :: Blank (n.) A piece of metal prepared to be made into something by a further operation, as a coin, screw, nuts..
Spiral :: Spiral (a.) Winding round a cylinder or imaginary axis, and at the same time rising or advancing forward; winding like the thread of a screw; helical..
Thread :: Thread (n.) The prominent part of the spiral of a screw or nut; the rib. See Screw, n., 1..
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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