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Proteroglypha :: Proteroglypha (n. pl.) A suborder of serpents including those that have permanently erect grooved poison fangs, with ordinary teeth behind them in the jaws. It includes the cobras, the asps, and the sea snakes. Called also Proteroglyphia..

Dicynodont :: Dicynodont (n.) One of a group of extinct reptiles having the jaws armed with a horny beak, as in turtles, and in the genus Dicynodon, supporting also a pair of powerful tusks. Their remains are found in triassic strata of South Africa and India..

Jaw :: "Jaw (n.) In the plural, the mouth..

Submaxillary :: Submaxillary (a.) Situated under the maxilla, or lower jaw; inframaxillary; as, the submaxillary gland..

Baleen :: Baleen (n.) Plates or blades of whalebone, from two to twelve feet long, and sometimes a foot wide, which in certain whales (Balaenoidea) are attached side by side along the upper jaw, and form a fringelike sieve by which the food is retained in the mouth..

Prognathous :: Prognathous (a.) Having the jaws projecting beyond the upper part of the face; -- opposed to orthognathous. See Gnathic index, under Gnathic..

Angular :: Angular (n.) A bone in the base of the lower jaw of many birds, reptiles, and fishes..

Coleoptera :: Coleoptera (n. pl.) An order of insects having the anterior pair of wings (elytra) hard and horny, and serving as coverings for the posterior pair, which are membranous, and folded transversely under the others when not in use. The mouth parts form two pairs of jaws (mandibles and maxillae) adapted for chewing. Most of the Coleoptera are known as beetles and weevils..

Nereis :: Nereis (n.) A genus, including numerous species, of marine chaetopod annelids, having a well-formed head, with two pairs of eyes, antennae, four pairs of tentacles, and a protrusile pharynx, armed with a pair of hooked jaws..

Hypognatous :: Hypognatous (a.) Having the maxilla, or lower jaw, longer than the upper, as in the skimmer..

Gnathostoma :: Gnathostoma (n. pl.) A comprehensive division of vertebrates, including all that have distinct jaws, in contrast with the leptocardians and marsipobranchs (Cyclostoma), which lack them..

Digastric :: Digastric (a.) Having two bellies; biventral; -- applied to muscles which are fleshy at each end and have a tendon in the middle, and esp. to the muscle which pulls down the lower jaw..

Lamprey :: Lamprey (n.) An eel-like marsipobranch of the genus Petromyzon, and allied genera. The lampreys have a round, sucking mouth, without jaws, but set with numerous minute teeth, and one to three larger teeth on the palate (see Illust. of Cyclostomi). There are seven small branchial openings on each side..

Pliers :: Pliers (n. pl.) A kind of small pinchers with long jaws, -- used for bending or cutting metal rods or wire, for handling small objects such as the parts of a watch, etc..

Pleurodont :: Pleurodont (a.) Having the teeth consolidated with the inner edge of the jaw, as in some lizards..

Jawed :: "Jawed (a.) Having jaws; -- chiefly in composition; as, lantern-jawed..

Dinotherium :: Dinotherium (n.) A large extinct proboscidean mammal from the miocene beds of Europe and Asia. It is remarkable fora pair of tusks directed downward from the decurved apex of the lower jaw.

Pedicellaria :: Pedicellaria (n.) A peculiar forcepslike organ which occurs in large numbers upon starfishes and echini. Those of starfishes have two movable jaws, or blades, and are usually nearly, or quite, sessile; those of echini usually have three jaws and a pedicel. See Illustration in Appendix..

Maxilliped :: Maxilliped (n.) One of the mouth appendages of Crustacea, situated next behind the maxillae. Crabs have three pairs, but many of the lower Crustacea have but one pair of them. Called also jawfoot, and foot jaw..

Swordfish :: Swordfish (n.) A very large oceanic fish (Xiphias gladius), the only representative of the family Xiphiidae. It is highly valued as a food fish. The bones of the upper jaw are consolidated, and form a long, rigid, swordlike beak; the dorsal fin is high and without distinct spines; the ventral fins are absent. The adult is destitute of teeth. It becomes sixteen feet or more long..

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