BELEMNITE n.
A conical calcareous fossil, tapering to a point at the lower extremity, with a conical cavity at the other end, where it is ordinarily broken; but when perfect it contains a small chambered cone, called the phragmocone, prolonged, on one side, into a delicate concave blade; the thunderstone. It is the internal shell o…
BROACH n.
A tool of steel, generally tapering, and of a polygonal form, with from four to eight cutting edges, for smoothing or enlarging holes in metal; sometimes made smooth or without edges, as for burnishing pivot holes in watches; a reamer. The broach for gun barrels is commonly square and without taper.…
BUOY n.
boat can be dispatched to save them. -- Nut or Nun buoy, a buoy large in the middle, and tapering nearly to a point at each end. -- To stream the buoy, to let the anchor buoy fall by the ship's side into the water, before letting go the anchor. -- Whistling buoy, a buoy fitted with a whistle that is blown by the act…