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A metallic element found in certain rare minerals, as thorite, pyrochlore, monazite, etc., and isolated as an infusible gray metallic powder which burns in the air and forms thoria; -- formerly called also thorinum. Symbol Th. Atomic weight 232.0.

Any one of several species of small, brilliantly colored American birds of the genus Rhamphomicron. They have a long, slender, sharp bill, and feed upon honey, insects, and the juice of the sugar cane.

e of several species of Asiatic singing birds of the genus Cochoa. They are beautifully colored birds allied to the tits, but resembling thrushes in size and habits. -- Water thrush. (a) The European dipper. (b) An American warbler (Seiurus Noveboracensis).

A species of inflorescence; a dense panicle, as in the lilac and horse-chestnut.

A solution (commonly colored) of medicinal substance in alcohol, usually more or less diluted; spirit containing medicinal substances in solution.

A pale or faint tinge of any color. Or blend in beauteous tints the colored mass. Pope. Their vigor sickens, and their tints decline. Harte.

High boots, having generally a band of some kind of light- colored leather around the upper part of the leg; riding boots.

Either one of two species of large, brilliantly colored humming birds of the Topaza, of South America and the West Indies.

Collared; having a torques, or distinct colored ring around the neck.

rticles. -- Tortoise-shell butterfly (Zoöl.), any one of several species of handsomely colored butterflies of the genus Aglais, as A. Milberti, and A. urticæ, both of which, in the larva state, feed upon nettles. -- Tortoise-shell turtle (Zoöl.), the hawkbill turtle. See Hawkbill.

hin, beak, often nearly as long as the body itself. Most of the species are brilliantly colored with red, yellow, white, and black in striking contrast.

A region or quantity of land or water, of indefinite extent; an area; as, an unexplored tract of sea. A very high mountain joined to the mainland by a narrowtract of earth. Addison.

ne of several species of Asiatic pheasants of the genus Ceriornis. They are brilliantly colored with a variety of tints, the back and breast are usually covered with white or buff ocelli, and the head is ornamented with two bright-colored, fleshy wattles. The crimson tragopan, or horned pheasant (C. satyra), of India i…

An old term rather loosely used to designate various dark- colored, heavy igneous rocks, including especially the feldspathic- augitic rocks, basalt, dolerite, amygdaloid, etc., but including also some kinds of diorite. Called also trap rock. Trap tufa, Trap tuff, a kind of fragmental rock made up of fragments and eart…

A prefix meaning three, thrice, threefold; as in tricolored, tridentate.

of services rendered, or as that which is due or deserved; as, a tribute of affection. Implores the passing tribute of a sigh. Gray.

Hence, any three-colored flag.

ds belonging to Triton and allied genera, having a stout spiral shell, often handsomely colored and ornamented with prominent varices. Some of the species are among the largest of all gastropods. Called also trumpet shell, and sea trumpet.

Any one of numerous species of bright-colored American birds belonging to Icterus and allied genera, especially Icterus icterus, a native of the West Indies and South America. Many of the species are called orioles in America. [Written also troopial.]

taining, or consisting of, small tubes; specifically (Bot.), composed wholly of tubulous florets; as, a tubulous compound flower. Tubulous boiler, a steam boiler composed chiefly of tubes containing water and surrounded by flame and hot gases; -- sometimes distinguished from tubular boiler.