lever
from
WordNet (r) 3.0 (2006)
lever
n 1: a rigid bar pivoted about a fulcrum
2: a simple machine that gives a mechanical advantage when given
a fulcrum
3: a flat metal tumbler in a lever lock [syn: {lever}, {lever
tumbler}]
v 1: to move or force, especially in an effort to get something
open; "The burglar jimmied the lock": "Raccoons managed to
pry the lid off the garbage pail" [syn: {pry}, {prise},
{prize}, {lever}, {jimmy}]
from
The Collaborative International Dictionary of English v.0.48
Lever \Le"ver\ (l[=e]"v[~e]r or l[e^]v"[~e]r; 277), n. [OE.
levour, OF. leveor, prop., a lifter, fr. F. lever to raise,
L. levare; akin to levis light in weight, E. levity, and
perh. to E. light not heavy: cf. F. levier. Cf. {Alleviate},
{Elevate}, {Leaven}, {Legerdemain}, {Levee}, {Levy}, n.]
1. (Mech.) A rigid piece which is capable of turning about
one point, or axis (the fulcrum), and in which are two or
more other points where forces are applied; -- used for
transmitting and modifying force and motion. Specif., a
bar of metal, wood, or other rigid substance, used to
exert a pressure, or sustain a weight, at one point of its
length, by receiving a force or power at a second, and
turning at a third on a fixed point called a fulcrum. It
is usually named as the first of the six mechanical
powers, and is of three kinds, according as either the
fulcrum F, the weight W, or the power P, respectively, is
situated between the other two, as in the figures.
[1913 Webster]
2. (Mach.)
(a) A bar, as a capstan bar, applied to a rotatory piece
to turn it.
(b) An arm on a rock shaft, to give motion to the shaft or
to obtain motion from it.
[1913 Webster]
{Compound lever}, a machine consisting of two or more levers
acting upon each other.
{Lever escapement}. See {Escapement}.
{Lever jack}. See {Jack}, n., 5.
{Lever watch}, a watch having a vibrating lever to connect
the action of the escape wheel with that of the balance.
{Universal lever}, a machine formed by a combination of a
lever with the wheel and axle, in such a manner as to
convert the reciprocating motion of the lever into a
continued rectilinear motion of some body to which the
power is applied.
[1913 Webster]
from
Moby Thesaurus II by Grady Ward, 1.0
73 Moby Thesaurus words for "lever":
Charlie McCarthy, agent, ancilla, appliance, bar, beam, boom,
cant hook, claw bar, contrivance, crab, crane, crank, creature,
crow, crowbar, derrick, device, dummy, dupe, erector, forklift,
gantry crane, get a foothold, get leverage, go-between, handmaid,
handmaiden, handspike, hoist, hydraulic tailgate, implement,
instrument, interagent, intermediary, intermediate, intermedium,
iron crow, jack, jackscrew, jimmy, lift, lifter, limb,
marlinespike, mechanism, mediator, medium, midwife, minion, organ,
outrigger, pawn, peavey, pedal, pinch bar, plaything, prize, pry,
puppet, ripping bar, servant, slave, spar, stooge, tackle, tool,
toy, treadle, vehicle, wedge, windlass, wrecking bar
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