- 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.
- to move with or apply a lever: to lever a rock; to lever mightily and to no avail.
Origin of lever
- Charles JamesCornelius O'Dowd, 1806–72, Irish novelist and essayist.
Examples from the Web for lever
That is, TFA is neither a lever for dramatically improving or ruining U.S. public education.Stop Scapegoating Teach for America
Conor P. Williams
September 24, 2014
A campaign button on his lapel showed him in a smile and a suit, and advertised his name and lever.The Strange and Mysterious Death of Mrs. Jerry Lee Lewis
Richard Ben Cramer
January 11, 2014
But Walker is betting that when the time comes to vote, Republicans will pull the lever for a person who gets things done.Scott Walker Is the Perfect Republican Candidate for 2016 (on Paper)
November 20, 2013
The British were bombed, but we are fighting on some islands belonging to the Lever Company, a British concern making soap.JFK Letter: ‘War Is a Dirty Business’
John F. Kennedy
November 5, 2013
People who play slot machines are excited because they never know when pulling the lever will result in a jackpot.Porn Boycott: Pastor Jay Dennis Wants You to Join 1 Million Men
July 3, 2013
The rudder may also be curved or warped in similar manner by lever action.Flying Machines
W.J. Jackman and Thos. H. Russell
Here's the heap of stone he used as a fulcrum for his lever.It Happened in Egypt
C. N. Williamson
I don't like the term "reparation," sir, except as a lever in the hands of counsel.Little Dorrit
Thou art the lever with which Archimedes was to lift the earthly sphere!A Hero of Our Time
M. Y. Lermontov
The bar or lever that is fixed to the top of the rudder-post is called a tiller.Boys' Book of Model Boats
Raymond Francis Yates
- 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
- to prise or move (an object) with a lever
Word Origin and History for lever
c.1300, from Old French levier (Modern French leveur) "a lifter, a lever," agent noun from lever "to raise," from Latin levare "to raise," from levis "light" in weight, from PIE root *legwh- "light, having little weight; easy, agile, nimble" (cf. Sanskrit laghuh "quick, small;" Greek elakhys "small," elaphros "light;" Old Church Slavonic liguku, Lithuanian lengvas "light;" Old Irish laigiu "smaller, worse;" Gothic leihts, Old English leoht "light" (adj.)). As a verb, 1856, from the noun.
- 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.