lever
[ lev-er, lee-ver ]
/ ˈlɛv ər, ˈli vər /
noun
Mechanics.
a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third.
Compare machine(def 4b).
a means or agency of persuading or of achieving an end: Saying that the chairman of the board likes the plan is just a lever to get us to support it.
Horology.
the pallet of an escapement.
verb (used with or without object)
to move with or apply a lever: to lever a rock; to lever mightily and to no avail.
Origin of lever
1250–1300; Middle English
levere, levour for
*lever < Anglo-French; Old French
levier, equivalent to
lev(er) to lift (< Latin
levāre to lighten, lift, verbal derivative of
levis light) +
-ier
-ier2
OTHER WORDS FROM lever
re·lev·er, verb (used with object)Words nearby lever
Definition for lever (2 of 2)
Lever
[ lee-ver ]
/ ˈli vər /
noun
Charles JamesCornelius O'Dowd,1806–72,
Irish novelist and essayist.
Example sentences from the Web for lever
British Dictionary definitions for lever
lever
/ (ˈliːvə) /
noun
a rigid bar pivoted about a fulcrum, used to transfer a force to a load and usually to provide a mechanical advantage
any of a number of mechanical devices employing this principle
a means of exerting pressure in order to accomplish something; strategic aid
verb
to prise or move (an object) with a lever
Derived forms of lever
lever-like, adjectiveWord Origin for lever
C13: from Old French
leveour, from
lever to raise, from Latin
levāre, from
levis light
Scientific definitions for lever
lever
[ lĕv′ər ]
A simple machine consisting of a bar that pivots on a fixed support, or fulcrum, and is used to transmit torque. A force applied by pushing down on one end of the lever results in a force pushing up at the other end. If the fulcrum is not positioned in the middle of the lever, then the force applied to one end will not yield the same force on the other, since the torque must be the same on either side of the fulcrum. Levers, like gears, can thus be used to increase the force available from a mechanical power source. See more at fulcrum. See also mechanical advantage.