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It is not only important, but, in a degree necessary, that the people of this country, should have an American Dictionary of the English language; for, although the body of the language is the same as in England, and it is desirable to perpetuate that sameness, yet some differences must exist. Language is the expression of ideas; and if the people of one country cannot preserve an identity of ideas, they cannot retain an identity of language. |
SCREW, n.
SCREW, v.t.
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.
* The screw, as a mechanical power, is a modification of the inclined plane, and may be regarded as a right-angled triangle wrapped round a cylinder, the hypotenuse of the marking the spiral thread of the screw, its base equaling the circumference of the cylinder, and its height the pitch of the thread. 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.
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.
An extortioner; a sharp bargainer; a
skinflint; a niggard.
Thackeray. An instructor who examines with great or
unnecessary severity; also, a searching or strict examination of a
student by an instructor.
[Cant, American Colleges] A small packet of tobacco.
[Slang]
Mayhew. An unsound or worn-out horse, useful as a
hack, and commonly of good appearance.
Ld. Lytton. A straight line in space
with which a definite linear magnitude termed the pitch is
associated (cf. 5th Pitch, 10
An amphipod
crustacean; as, the skeleton screw (Caprella). See
Sand screw, under Sand.
Archimedes screw, Compound
screw, Foot screw, etc. See under
Archimedes, Compound, Foot, etc. --
A screw loose, something out of order, so that
work is not done smoothly; as, there is a screw loose
somewhere. H. Martineau. -- Endless, or
perpetual, screw, a screw used to give
motion to a toothed wheel by the action of its threads between the
teeth of the wheel; -- called also a worm. -- Lag
screw. See under Lag. -- Micrometer
screw, a screw with fine threads, used for the
measurement of very small spaces. -- Right and left
screw, a screw having threads upon the opposite ends
which wind in opposite directions. -- Screw
alley. See Shaft alley, under Shaft.
-- Screw bean. (Bot.) 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.
To force; to squeeze; to press, as by
screws.
But screw your courage to the sticking
place, Hence: To practice extortion upon; to
oppress by unreasonable or extortionate exactions.
Our country landlords, by unmeasurable screwing and racking their tenants, have already reduced the miserable people to a worse condition than the peasants in France. swift. To twist; to distort; as, to screw
his visage.
He screwed his face into a hardened smile. Dryden. To examine rigidly, as a student; to
subject to a severe examination.
[Cant, American Colleges]
To screw out, to press out; to extort. - - To screw up, to force; to bring by violent pressure. Howell. -- To screw in, to force in by turning or twisting. To
use violent mans in making exactions; to be oppressive or
exacting.
Howitt. To turn one's self uneasily with a twisting
motion; as, he screws about in his chair.
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