PILE n.
ving the form of a wedge, usually placed palewise, with the broadest end uppermost. Pile bridge, a bridge of which the roadway is supported on piles. -- Pile cap, a beam resting upon and connecting the heads of piles. -- Pile driver, or Pile engine, an apparatus for driving down piles, consisting usually of a high fr…
PIVOT n.
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),…