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Out :: Out (a.) Beyond the limit of existence, continuance, or supply; to the end; completely; hence, in, or into, a condition of extinction, exhaustion, completion; as, the fuel, or the fire, has burned out..

Plesiosaurus :: Plesiosaurus (n.) A genus of large extinct marine reptiles, having a very long neck, a small head, and paddles for swimming. It lived in the Mesozoic age..

Placodermi :: Placodermi (n. pl.) An extinct group of fishes, supposed to be ganoids. The body and head were covered with large bony plates. See Illust. under Pterichthys, and Coccosteus..

Slake :: Slake (v. i.) To go out; to become extinct.

Extinction :: Extinction (n.) State of being extinguished or of ceasing to be; destruction; suppression; as, the extinction of life, of a family, of a quarrel, of claim..

Hipparion :: Hipparion (n.) An extinct genus of Tertiary mammals allied to the horse, but three-toed, having on each foot a small lateral hoof on each side of the main central one. It is believed to be one of the ancestral genera of the Horse family..

Active :: Active (a.) In action; actually proceeding; working; in force; -- opposed to quiescent, dormant, or extinct; as, active laws; active hostilities; an active volcano..

Mastodonsaurus :: Mastodonsaurus (n.) A large extinct genus of labyrinthodonts, found in the European Triassic rocks..

Trigonia :: Trigonia (n.) A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia..

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..

Platycoelian :: Platycoelian (a.) Flat at the anterior and concave at the posterior end; -- said of the centra of the vertebrae of some extinct dinouaurs.

Mosasaurus :: Mosasaurus (n.) A genus of extinct marine reptiles allied to the lizards, but having the body much elongated, and the limbs in the form of paddles. The first known species, nearly fifty feet in length, was discovered in Cretaceous beds near Maestricht, in the Netherlands..

Fine :: Fine (n.) End; conclusion; termination; extinction.

Toothbill :: Toothbill (n.) A peculiar fruit-eating ground pigeon (Didunculus strigiostris) native of the Samoan Islands, and noted for its resemblance, in several characteristics, to the extinct dodo. Its beak is stout and strongly hooked, and the mandible has two or three strong teeth toward the end. Its color is chocolate red. Called also toothbilled pigeon, and manu-mea..

Tasmanian :: Tasmanian (a.) Of or pertaining to Tasmania, or Van Diemen's Land. -- n. A native or inhabitant of Tasmania; specifically (Ethnol.), in the plural, the race of men that formerly inhabited Tasmania, but is now extinct..

Extinct :: Extinct (a.) Extinguished; put out; quenched; as, a fire, a light, or a lamp, is extinct; an extinct volcano..

Garrote :: Garrote (n.) A Spanish mode of execution by strangulation, with an iron collar affixed to a post and tightened by a screw until life become extinct; also, the instrument by means of which the punishment is inflicted..

Mesohippus :: Mesohippus (n.) An extinct mammal of the Horse family, but not larger than a sheep, and having three toes on each foot..

Extinction :: Extinction (n.) The act of extinguishing or making extinct; a putting an end to; the act of putting out or destroying light, fire, life, activity, influence, etc..

Crinoidea :: Crinoidea (n. pl.) A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. Most of the fossil species, like some that are recent, were attached by a jointed stem. See Blastoidea, Cystoidea, Comatula..

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