lever – מילון אנגלי-אנגלי
lever
n.
simple machine consisting of a rigid bar which pivots on a fixed point and is used to raise or move an object on one end by applying force to the other; handle; means of accomplishing something
v.
move with a lever, raise by means of a lever
Lever
A
lever ( or ) is a
machine consisting of a
beam or rigid rod pivoted at a fixed
hinge, or . A lever is a rigid body capable of rotating on a point on itself. It is one of the six
simple machines identified by Renaissance scientists. The word entered
English about 1300 from
Old French, in which the word was
levier. This sprang from the stem of the verb
lever, meaning "to raise". The verb, in turn, goes back to the
Latin levare, itself from the adjective
levis, meaning "light" (as in "not heavy"). The word's ultimate origin is the
Proto-Indo-European (PIE) stem
legwh-, meaning "light", "easy" or "nimble", among other things. The PIE stem also gave rise to the English word "light". A lever amplifies an input force to provide a greater output force, which is said to provide
leverage. The ratio of the output force to the input force is the
mechanical advantage of the lever.
lever
Noun
1. a rigid bar pivoted about a fulcrum
(hypernym) bar
(hyponym) compound lever
(part-meronym) fulcrum
(derivation) pry, prise, prize, jimmy
2. a simple machine that gives a mechanical advantage when given a fulcrum
(hypernym) machine, simple machine
(derivation) pry, prise, prize, jimmy
3. a flat metal tumbler in a lever lock
(synonym) lever tumbler
(hypernym) tumbler
(part-holonym) lever lock
Verb
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"
(synonym) pry, prise, prize, jimmy
(hypernym) open, open up
(entail) loosen, loose
lever
v.
lift, put up, raise, hold up; take up, prove
lever
nm.
elevation, raising, lifting up
lever
adj.
hepatic
lever (de)
n.
liver
leveren
v.
furnish, purvey, supply, deliver, wage