TURRET n.
.), a vertical cylindrical revolving tool holder for bringing different tools into action successively in a machine, as in a lathe. -- Turret lathe, a turning lathe having a turret head. -- Turret ship, an ironclad war vessel, with low sides, on which heavy guns are mounted within one or more iron turrets, which may…
UNDULATORY a.
Moving in the manner of undulations, or waves; resembling the motion of waves, which successively rise or swell rise or swell and fall; pertaining to a propagated alternating motion, similar to that of waves. Undulatory theory, or Wave theory (of light) (Opt.), that theory which regards its various phenomena as due to…
WEDGE-TAILED a.
Having a tail which has the middle pair of feathers longest, the rest successively and decidedly shorter, and all more or less attenuate; -- said of certain birds. See Illust. of Wood hoopoe, under Wood. Wedge-tailed eagle, an Australian eagle (Aquila audax) which feeds on various small species of kangaroos, and on lam…