piv·ot /ˈpɪvət/ 名詞
1. A fixed pin or short axis, on the end of which a wheel or other body turns.
2. The end of a shaft or arbor which rests and turns in a support; as, the pivot of an arbor in a watch.
3. Hence, figuratively: A turning point or condition; that on which important results depend; as, the pivot of an enterprise.
4. Mil. The officer or soldier who simply turns in his place whike the company or line moves around him in wheeling; -- called also pivot man.
Pivot bridge, a form of drawbridge in which one span, called the pivot span, turns about a central vertical axis.
Pivot gun, a gun mounted on a pivot or revolving carriage, so as to turn in any direction.
Pivot tooth Dentistry, an artificial crown attached to the root of a natural tooth by a pin or peg.
Piv·ot, v. t. [imp. & p. p. Pivoted; p. pr. & vb. n. Pivoting.] To place on a pivot.
n 1: the person in a rank around whom the others wheel and
maneuver [syn: pivot man]
2: axis consisting of a short shaft that supports something
that turns [syn: pin]
3: the act of turning on (or as if on) a pivot; "the golfer
went to the driving range to practice his pivot"
v : turn on a pivot [syn: swivel]