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sulphur and selenium, occasionally found native as a substance of a silver-white metallic luster, but usually combined with metals, as with gold and silver in the mineral sylvanite, with mercury in Coloradoite, etc. Symbol Te. Atomic weight 125.2. Graphic tellurium. (Min.) See Sylvanite. -- Tellurium glance (Min.), na…

A telluride of bismuth. It is of a pale steel-gray color and metallic luster, and usually occurs in foliated masses. Calles also telluric bismuth.

Anhydrous sodium sulphate, a mineral of a white or brown color and vitreous luster.

To become thick. "Thy luster thickens when he shines by." Shak. The press of people thickens to the court. Dryden. The combat thickens, like the storm that flies. Dryden.

A red or violet dyestuff having a greenish metallic luster. It is produced artificially, by the chemical dehydration of thionine, as a brown amorphous powder.

, to threaten war; to threaten death. Milton. The skies look grimly And threaten present blusters. Shak.

neral occurring as an aggregation of minute scales having an olive-green color and pearly luster. It is a hydrous silicate of aluminia and iron.

A siliceous stone of a yellow color and chatoyant luster, obtained in South Africa and much used for ornament. It is an altered form of the mineral crocidolite. See Crocidolite.

Something shining and gaudy; something superficially shining and showy, or having a false luster, and more gay than valuable. O happy peasant! O unhappy bard! His the mere tinsel, hers the rich reward. Cowper.

sphene, etc., and isolated as an infusible iron- gray amorphous powder, having a metallic luster. It burns when heated in the air. Symbol Ti. Atomic weight 48.1.

numerous species of small tortoise-shaped beetles. Many of them have a brilliant metallic luster. the larvæ feed upon the leaves of various plants, and protect themselves beneath a mass of dried excrement held over the back by means of the caudal spines. The golden tortoise beetle (Cassida aurichalcea) is found on the…

straight trunk, sometimes twenty or twenty-five feet high, or even higher, and bearing a cluster of fronds at the top. Most of the existing species are tropical. -- Tree fish (Zoöl.), a California market fish (Sebastichthys serriceps). -- Tree frog. (Zoöl.) (a) Same as Tree toad. (b) Any one of numerous species of Ol…

ging to the family Trogonidæ. They are noted for the brilliant colors and the resplendent luster of their plumage.

triton. -- Trumpet creeper (Bot.), an American climbing plant (Tecoma radicans) bearing clusters of large red trumpet-shaped flowers; -- called also trumpet flower, and in England trumpet ash. -- Trumpet fish. (Zoöl.) (a) The bellows fish. (b) The fistularia. -- Trumpet flower. (Bot.) (a) The trumpet creeper; also,…

Any fossil coral of the genus Syringopora consisting of a cluster of upright tubes united together by small transverse tubules.

the summits of long, slender, usually simple, stems. The gonophores are small, and form clusters at the bases of the outer tentacles.

of small, flexible, or soft things in a knot or bunch; a waving or bending and spreading cluster; as, a tuft of flowers or feathers.

Growing in tufts or clusters; tufty. The tufted crowtoe, and pale jessamine. Milton. Tufted trees and springing corn. Pope. Tufted duck (Zoöl.), the ring-necked duck. [Local, U.S.]

Growing in tufts or clusters. Where tufty daisies nod at every gale. W. Browne.

uble cyanide of ferrous and ferric iron, a dark blue amorphous substance having a coppery luster, used in dyeing, calico printing, etc. Cf. Prussian blue, under Prussian.