pivot tooth

1 definition found

pivot tooth - Collaborative International Dictionary of English v.0.48 :

  Pivot \Piv"ot\, n. [F.; prob. akin to It. piva pipe, F. pipe.
     See Pipe.]
     1. A fixed pin or short axis, on the end of which a wheel or
        other body turns.
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     2. The end of a shaft or arbor which rests and turns in a
        support; as, the pivot of an arbor in a watch.
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     3. Hence, figuratively: A turning point or condition; that on
        which important results depend; as, the pivot of an
        enterprise.
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     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.
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     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.
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