• The bill or nib of a bird, consisting of a horny sheath, covering the jaws. The form varied much according to the food and habits of the bird, and is largely used in the classification of birds. • A similar bill in other animals, as the turtles. • The long projecting sucking mouth of some insects, and other invertebrates, as in the Hemiptera. • The upper or projecting part of the shell, near the hinge of a bivalve. • The prolongation of certain univalve shells containing the canal. • Anything projecting or ending in a point, like a beak, as a promontory of land. • A beam, shod or armed at the end with a metal head or point, and projecting from the prow of an ancient galley, in order to pierce the vessel of an enemy; a beakhead. • That part of a ship, before the forecastle, which is fastened to the stem, and supported by the main knee. • A continuous slight projection ending in an arris or narrow fillet; that part of a drip from which the water is thrown off. • Any process somewhat like the beak of a bird, terminating the fruit or other parts of a plant. • A toe clip. See Clip, n. (Far.). • A magistrate or policeman.