Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of screw is as below...

Bolt :: Bolt (n.) A strong pin, of iron or other material, used to fasten or hold something in place, often having a head at one end and screw thread cut upon the other end..

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..

Screw :: Screw (n.) An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand..

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..

Worm :: Worm (n.) A short revolving screw, the threads of which drive, or are driven by, a worm wheel by gearing into its teeth or cogs. See Illust. of Worm gearing, below..

Pitch :: Pitch (n.) The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller..

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

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

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..

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..

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..

Worm :: Worm (n.) A spiral instrument or screw, often like a double corkscrew, used for drawing balls from firearms..

Bush :: Bush (n.) A piece of copper, screwed into a gun, through which the venthole is bored..

Screw :: 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,

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.

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

Thread :: Thread (n.) The prominent part of the spiral of a screw or nut; the rib. See Screw, n., 1..

Propeller :: Propeller (n.) A steamboat thus propelled; a screw steamer.

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

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