Search the Dictionary

plate found in the terminal chambers of ammonite shells. Some authors consider them to be jaws; others, opercula.

kable for having a long tapering tail of many vertebræ with feathers along each side, and jaws armed with teeth, with other reptilian characteristics.

The five united jaws and accessory ossicles of certain sea urchins.

A bone in the base of the lower jaw of many birds, reptiles, amphibians, and fishes.

. See Assignment (c). An assignee may be by special appointment or deed, or be created by jaw; as an executor. Cowell. Blount. (b) pl.

One of the five arched processes of the shell around the jaws of a sea urchin.

hich an axle box is held laterally, and in which it may move vertically; -- also called a jaw in the United States, and a housing in England.

foot wide, which in certain whales (Balænoidea) are attached side by side along the upper jaw, and form a fringelike sieve by which the food is retained in the mouth.

The space between the tusks and grinders in the upper jaw of a horse, in which the bit is placed.

A large fresh-water fish ( Barbus vulgaris) found in many European rivers. Its upper jaw is furnished with four barbels.

1. (Zoöl.) (a) 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. (b) A similar bill in other animals, as the turtles. (c) The long projecting sucking mouth of some insects, an…

The appendages to the jaw in some Cetacea, and to the mouth or jaws of some fishes.

teeth which intervene between the canines (cuspids) and the molars, on each side of each jaw. See Tooth, n.

us; as, to bore a steam cylinder or a gun barrel; to bore a hole. Short but very powerful jaws, by means whereof the insect can bore, as with a centerbit, a cylindrical passage through the most solid wood. T. W. Harris.

lso butter stamp. Locke. -- Butter tooth, either of the two middle incisors of the upper jaw. -- Butter tree (Bot.), a tree of the genus Bassia, the seeds of which yield a substance closely resembling butter. The butter tree of India is the B. butyracea; that of Africa is the Shea tree (B. Parkii). See Shea tree. --…

liper square, a draughtsman's or mechanic's square, having a graduated bar and adjustable jaw or jaws. Knight. -- Vernier calipers. See Vernier.

ause well developen in dogs; usually, the third tooth from the front on each side of each jaw; an eyetooth, or the corresponding tooth in the lower jaw.

so eat vegetable food. The teeth are large and sharp, suitable for cutting flesh, and the jaws powerful.

birth, but with a series of plates of whalebone [see Baleen.] hanging down from the upper jaw on each side, thus making a strainer, through which they receive the small animals upon which they feed. (b) The Denticete, including the dolphins and sperm whale, which have teeth. Another suborder (Zeuglodontia) is extinct.…

One of the jaws or the fleshy covering of a jaw; -- commonly in the plural, and used of animals, and colloquially of human beings. His chaps were all besmeared with crimson blood. Cowley. He unseamed him [Macdonald] from the nave to the chaps. Shak.