Lever ::
Lever (n.) 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 mecha