Screw

[skruː] or [skru]

解释:

(noun.) a fastener with a tapered threaded shank and a slotted head.

(noun.) a propeller with several angled blades that rotates to push against water or air.

(noun.) a simple machine of the inclined-plane type consisting of a spirally threaded cylindrical rod that engages with a similarly threaded hole.

(verb.) tighten or fasten by means of screwing motions; 'Screw the bottle cap on'.

(verb.) cause to penetrate, as with a circular motion; 'drive in screws or bolts'.

(verb.) turn like a screw.

整理:默尔--From WordNet

解释:

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

(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.

(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.

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

(n.) An extortioner; a sharp bargainer; a skinflint; a niggard.

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

(n.) A small packet of tobacco.

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

(n.) 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.

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

(v. t.) 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.

(v. t.) To force; to squeeze; to press, as by screws.

(v. t.) Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.

(v. t.) To twist; to distort; as, to screw his visage.

(v. t.) To examine rigidly, as a student; to subject to a severe examination.

(v. i.) To use violent mans in making exactions; to be oppressive or exacting.

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

迪克整理

同义词及近义词：

n. Miser, niggard, curmudgeon, skinflint, churl, codger, scrimp, hunks, lickpenny, muckworm, sordid wretch, mean fellow.

校对:威尔默

解释:

n. a cylinder with a spiral groove or ridge on either its outer or inner surface used as a fastening and as a mechanical power: a screw-propeller: a turn or twist to one side: a penny packet of tobacco put up in a paper twisted at both ends: a stingy fellow an extortioner a skinflint: a broken-winded horse: pressure: (U.S. slang) a professor who requires students to work hard: salary wages.—v.t. to apply a screw to: to press with a screw: to twist: to oppress by extortion: to force: to squeeze.—ns. Screw′-bolt a bolt threaded at one end for a nut; Screw′-cut′ter a hand-tool for cutting screws; Screw′-driv′er an instrument for driving or turning screw-nails.—adj. Screwed (slang) tipsy tight.—ns. Screw′-el′evator a dentist's instrument: a surgeon's instrument for forcing open the jaws; Screw′er.—adj. Screw′ing exacting: close.—ns. Screw′-jack (same as Jackscrew); Screw′-key a lever for turning the nut of a screw; Screw′-machine′ a machine for making screws; Screw′-nail a nail made in the form of a screw; Screw′-pile a pile forced into the ground and held there by a peculiar kind of screw at the lower extremity; Screw′-pine a plant of the tropical genus Pandanus or of the screw-pine family—from the screw-like arrangement of the clustered leaves; Screw′-plate a plate of steel in which are a graduated series of holes with internal screws used in forming external screws; Screw′-pod the screw-bean Screw′-press a press in which the force is applied by means of a screw; Screw′-propel′ler a screw or spiral-bladed wheel at the stern of steam-vessels for propelling them: a steamer so propelled; Screw′-rudd′er an application of the screw for the purpose of steering; Screw′-stair a spiral staircase: a hanging stair; Screw′-steam′er a steamer propelled by a screw; Screw′stone a wheelstone: a fossil screw; Screw′-thread the spiral ridge on the cylinder of a male screw or on the inner surface of a female screw; Screw′-valve a stop-cock opened and shut by means of a screw instead of a spigot; Screw′-ven′tilator a ventilating apparatus; Screw′-worm the larva of a blow-fly; Screw′-wrench a tool for grasping the flat sides of the heads of large screws.—adj. Screw′y exacting: close: worthless.—A screw loose something defective.

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