| Lever (lever) |
|---|
| a. | (l***emacr]"v r) |
|---|
| Lev"er |
| [Old
compar. of leve or lief.] |
More agreeable; more
pleasing.
|
| Lever (lever) |
|---|
| n. | (l***emacr]"vr or l v"r;
277) |
|---|
| Le"ver |
| [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,
Elev |
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.
A bar,
as a capstan bar, applied to a rotatory piece to turn it.
|
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In celebration of Noah Webster's Birthday (October 16, 2009), we have prepared an updated website. 