DICT.TW Dictionary Taiwan

 pivot tooth 名詞
 釘牙

 Piv·ot n.
 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.