lev·er (l v r, l v r)n.1. A simple machine consisting of a rigid bar pivoted on a fixed point and used to transmit force, as in raising or moving a weight at one end by pushing down on the other. 2. A projecting handle used to adjust or operate a mechanism. 3. A means of accomplishing; a tool: used friendship as a lever to obtain advancement. tr.v. lev·ered, lev·er·ing, lev·ers To move or lift with or as if with a lever.
[Middle English, from Old French levier, from lever, to raise, from Latin lev re, from levis, light; see legwh- in Indo-European roots.] | lever top to bottom: first-class, second-class, and third-class levers |
lever Noun 1. a handle used to operate machinery 2. a bar used to move a heavy object or to prise something open 3. a rigid bar that turns on a fixed support (fulcrum) to transfer effort and motion, for instance to move a load 4. a means of exerting pressure in order to achieve an aim: using the hostages as a lever to gain concessions from the west Verb to open or move with a lever [Latin levare to raise]
lever (l v r) 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. |
ThesaurusLegend: Synonyms Related Words Antonyms | Noun | 1. | lever - a rigid bar pivoted about a fulcrumbar - a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon; "there were bars in the windows to prevent escape" fulcrum - the pivot about which a lever turns hand throttle - a hand-operated lever that controls the throttle valve key - a lever (as in a keyboard) that actuates a mechanism when depressed pinch bar - a lever with a pointed projection that serves as a fulcrum; used to roll heavy wheels ripping bar - a steel lever with one end formed into a ripping chisel and the other a gooseneck with a claw for pulling nails rocker arm, valve rocker - a lever pivoted at the center; used especially to push a valve down in an internal-combustion engine spark lever - (on early automobiles) a lever mounted on the steering column and used to adjust the timing of the ignition tappet - a lever that is moved in order to tap something else tiller - lever used to turn the rudder on a boat tire iron, tire tool - hand tool consisting of a lever that is used to force the casing of a pneumatic tire onto a steel wheel | | 2. | lever - a simple machine that gives a mechanical advantage when given a fulcrumsimple machine, machine - a device for overcoming resistance at one point by applying force at some other point | | 3. | lever - a flat metal tumbler in a lever locklever lock - a lock whose tumblers are levers that must be raised to a given position so that the bolt can move tumbler - a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown | | Verb | 1. | lever - 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"open, open up - cause to open or to become open; "Mary opened the car door" |
lever
Translations lever [ˈliːvəʳ] n → palanca
lever [ˈliːvəʳ] n → levier m
lever [ˈliːvəʳ] n → Hebel m (= bar); Brechstange f ( fig); Druckmittel ntvt to lever up → hochhieven; to lever out → heraushieven
lever [ˈliːvəʳ] n → leva
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