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Having a fine light blue color, like that of choice mineral turquoise.

A hydrous phosphate of alumina containing a little copper; calaite. It has a blue, or bluish green, color, and usually occurs in reniform masses with a botryoidal surface. [Formerly written also turcois, and turkois.]

A blue pigment formerly obtained by powdering lapis lazuli, but now produced in large quantities by fusing together silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product…

Cotingidæ. It is black, with a large handsome crest consisting of a mass of soft, glossy blue feathers curved outward at the tips. It also has a cervical plume consisting of a long, cylindrical dermal process covered with soft hairy feathers. Called also dragoon bird. -- Umbrella leaf (Bot.), an American perennial he…

To line; to guard; to face; as, cloth of gold underborne with blue tinsel. [Obs.] Shak.

A body identical with indigo blue, occasionally found in the urine in degeneration of the kidneys. It is readily formed by oxidation or decomposition of indican.

A sort of blue or black clay lying near a vein of coal.

butterfly (Basilarchia, or Limenitis, astyanax). Its wings are nearly black with red and blue spots and blotches. Called also red-spotted purple.

A genus of ericaceous shrubs including the various kinds of blueberries and the true cranberries.

in heraldry by a series of small shields placed close together, and alternately white and blue. Fairholt. No vair or ermine decked his garment. Sir W. Scott. Counter vair (Her.), a fur resembling vair, except in the arrangement of the patches or figures.

n medicine as an antispasmodic. Greek valerian (Bot.), a plant (Polemonium cæruleum) with blue or white flowers, and leaves resembling those of the officinal valerian.

An old name for hypochondria, or melancholy; the blues. "A fit of vapors." Pope.

wort (Bot.), any one of several species of Omphalodes, low boraginaceous herbs with small blue or white flowers. -- Venus's pride (Bot.), an old name for Quaker ladies. See under Quaker. -- Venus's purse. (Zoöl.) Same as Venus's basket, above. -- Venus's shell. (Zoöl.) (a) Any species of Cypræa; a cowrie. (b) Same a…

Either one of two pigments (called blue verditer, and green verditer) which are made by treating copper nitrate with calcium carbonate (in the form of lime, whiting, chalk, etc.) They consist of hydrated copper carbonates analogous to the minerals azurite and malachite. Verditer blue, a pale greenish blue color, like t…

tragonal crystals, and also massive, of a brown to green color, rarely sulphur yellow and blue. It is a silicate of alumina and lime with some iron magnesia, and is common at Vesuvius. Also called idocrase.

The four-colored flag of the South African Republic, or Transvaal, -- red, white, blue, and green.

, made from aniline, and used as a substitute for indigo in dyeing wool and silk a violet-blue or a gray-blue color.

violets are generally low, herbaceous plants, and the flowers of many of the species are blue, while others are white or yellow, or of several colors, as the pansy (Viola tricolor).

is obtained as a white or yellow crystalline substance, and forms characteristic yellow, blue, and violet salts.

per's bugloss (Bot.), a rough-leaved biennial herb (Echium vulgare) having showy purplish blue flowers. It is sometimes cultivated, but has become a pestilent weed in fields from New York to Virginia. Also called blue weed. -- Viper's grass (Bot.), a perennial composite herb (Scorzonera Hispanica) with narrow, entire…