Definition of blue

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Blue (superl.) Low in spirits; melancholy; as, to feel blue..

Lern More About Blue

Blue-eye :: Blue-eye (n.) The blue-cheeked honeysucker of Australia.
Indophenol :: Indophenol (n.) Any one of a series of artificial blue dyestuffs, resembling indigo in appearance, and obtained by the action of phenol on certain nitrogenous derivatives of quinone. Simple indophenol proper has not yet been isolated..
"""blue Book " :: Blue book () The United States official Biennial Register..
Blueberry :: Blueberry (n.) The berry of several species of Vaccinium, an ericaceous genus, differing from the American huckleberries in containing numerous minute seeds instead of ten nutlets. The commonest species are V. Pennsylvanicum and V. vacillans. V. corymbosum is the tall blueberry..
Woad :: Woad (n.) A blue dyestuff, or coloring matter, consisting of the powdered and fermented leaves of the Isatis tinctoria. It is now superseded by indigo, but is somewhat used with indigo as a ferment in dyeing..
Bluebill :: Bluebill (n.) A duck of the genus Fuligula. Two American species (F. marila and F. affinis) are common. See Scaup duck.
Flax :: Flax (n.) A plant of the genus Linum, esp. the L. usitatissimum, which has a single, slender stalk, about a foot and a half high, with blue flowers. The fiber of the bark is used for making thread and cloth, called linen, cambric, lawn, lace, etc. Linseed oil is expressed from the seed..
Cunner :: Cunner (n.) A small edible fish of the Atlantic coast (Ctenolabrus adspersus); -- called also chogset, burgall, blue perch, and bait stealer..
Bluewing :: Bluewing (n.) The blue-winged teal. See Teal.
Ecchymosis :: Ecchymosis (n.) A livid or black and blue spot, produced by the extravasation or effusion of blood into the areolar tissue from a contusion..
Army :: Army (n.) A body of persons organized for the advancement of a cause; as, the Blue Ribbon Army..
Azure :: Azure (n.) The clear blue color of the sky; also, a pigment or dye of this color..
Blue :: Blue (superl.) Suited to produce low spirits; gloomy in prospect; as, thongs looked blue..
Indigo :: Indigo (n.) A blue dyestuff obtained from several plants belonging to very different genera and orders; as, the woad, Isatis tinctoria, Indigofera tinctoria, I. Anil, Nereum tinctorium, etc. It is a dark blue earthy substance, tasteless and odorless, with a copper-violet luster when rubbed. Indigo does not exist in the plants as such, but is obtained by decomposition of the glycoside indican..
Blackfin :: Blackfin (n.) See Bluefin.
Synthesis :: Synthesis (n.) The art or process of making a compound by putting the ingredients together, as contrasted with analysis; thus, water is made by synthesis from hydrogen and oxygen; hence, specifically, the building up of complex compounds by special reactions, whereby their component radicals are so grouped that the resulting substances are identical in every respect with the natural articles when such occur; thus, artificial alcohol, urea, indigo blue, alizarin, etc., are made by synthesis..
Bluebird :: Bluebird (n.) A small song bird (Sialia sialis), very common in the United States, and, in the north, one of the earliest to arrive in spring. The male is blue, with the breast reddish. It is related to the European robin..
Saunders-blue :: Saunders-blue (n.) A kind of color prepared from calcined lapis lazuli; ultramarine; also, a blue prepared from carbonate of copper..
Stone-cold :: Stonechat (n.) The blue titmouse.
Teal :: Teal (n.) Any one of several species of small fresh-water ducks of the genus Anas and the subgenera Querquedula and Nettion. The male is handsomely colored, and has a bright green or blue speculum on the wings..
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