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Aristotle's Lantern :: Aristotle's lantern () The five united jaws and accessory ossicles of certain sea urchins.

Beak :: Beak (n.) 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..

Law-fall :: "Law-fall (n.) Depression of the jaw; hence, depression of spirits..

Chin :: Chin (n.) The exterior or under surface embraced between the branches of the lower jaw bone, in birds..

Pig-jawed :: Pig-jawed (a.) Having the upper jaw projecting beyond the lower, with the upper incisors in advance of the lower; -- said of dogs..

Pedestal :: Pedestal (n.) A casting secured to the frame of a truck and forming a jaw for holding a journal box.

Suspensory :: Suspensorium (n.) Anything which suspends or holds up a part: especially, the mandibular suspensorium (a series of bones, or of cartilages representing them) which connects the base of the lower jaw with the skull in most vertebrates below mammals..

Odontornithes :: Odontornithes (n. pl.) A group of Mesozoic birds having the jaws armed with teeth, as in most other vertebrates. They have been divided into three orders: Odontolcae, Odontotormae, and Saururae..

Beard :: Beard (n.) The appendages to the jaw in some Cetacea, and to the mouth or jaws of some fishes..

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

Pterygomaxillary :: Pterygomaxillary (a.) Of or pertaining to the inner pterygoid plate, or pterygoid bone, and the lower jaw..

Archaeopteryx :: Archaeopteryx (n.) A fossil bird, of the Jurassic period, remarkable for having a long tapering tail of many vertebrae with feathers along each side, and jaws armed with teeth, with other reptilian characteristics..

Diodon :: Diodon (n.) A genus of spinose, plectognath fishes, having the teeth of each jaw united into a single beaklike plate. They are able to inflate the body by taking in air or water, and, hence, are called globefishes, swellfishes, etc. Called also porcupine fishes, and sea hedgehogs..

Lagemorpha :: Lagemorpha (n. pl.) A group of rodents, including the hares. They have four incisors in the upper jaw. Called also Duplicidentata..

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..

Maxillary :: Maxillary (a.) Pertaining to either the upper or the lower jaw, but now usually applied to the upper jaw only..

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

Odontolcae :: Odontolcae (n. pl.) An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis..

Tooth :: Tooth (n.) One of the hard, bony appendages which are borne on the jaws, or on other bones in the walls of the mouth or pharynx of most vertebrates, and which usually aid in the prehension and mastication of food..

Incisor :: Incisor (n.) One of the teeth in front of the canines in either jaw; an incisive tooth. See Tooth.

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