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, more usually the screw; the latter as the internal, or female screw, or, more usually, the nut.

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.

A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis.

To turn, as a screw; to apply a screw to; to press, fasten, or make firm, by means of a screw or screws; as, to screw a lock on a door; to screw a press.

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.

A steam vesel propelled by a screw instead of wheels; a screw steamer; a propeller.

Propeler

A boats propeller

A helically flighted shaft which rotates within the barrel to mechanically work and advance the material being processed.

a pointed nail with grooves in it

a shaft with a helical groove formed on its surface

A helically grooved rotating element inside the barrel of a screw extruder. The main purpose of a screw is to melt and feed raw material from the feeder to the die, but it also homogenizes, compresses and pressurizes the material.

To force; to squeeze; to press, as by screws.

cause to penetrate, as with a circular motion; "drive in screws or bolts"

The rotating component of an injection press which delivers the rubber into the mold.

The key portion of an injection molding machine for metering and filling the die cavity. It has a taper along the length to compress the feedstock as it is metered for removal of trapped air and a check ring at the tip to allow forward plunging motion during mold filling.

A slang term for intercourse.

slang terms for sexual intercourse

have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve"; "Were you ever intimate with this man?"

(slang) See Intercourse

An extortioner; a sharp bargainer; a skinflint; a niggard.

Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.

To use violent mans in making exactions; to be oppressive or exacting.

An unsound or worn-out horse, useful as a hack, and commonly of good appearance.

Guard, Correctional Officer (or Hack, Pig, Turnkey).

someone who guards prisoners

To turn one's self uneasily with a twisting motion; as, he screws about in his chair.

turn like a screw

Back-sag somersault with a 360-degree turn. There are double, triple somersaults, etc.