Definition of blue

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Blue (n.) One of the seven colors into which the rays of light divide themselves, when refracted through a glass prism; the color of the clear sky, or a color resembling that, whether lighter or darker; a pigment having such color. Sometimes, poetically, the sky..

Lern More About Blue

Lapis Lazuli :: Lapis lazuli () An albuminous mineral of a rich blue color. Same as Lazuli, which see..
Green :: Green (n.) The color of growing plants; the color of the solar spectrum intermediate between the yellow and the blue.
Abluent :: Abluent (n.) A detergent.
Stripe :: Stripe (n.) A strip, or long, narrow piece attached to something of a different color; as, a red or blue stripe sewed upon a garment..
Linarite :: Linarite (n.) A hydrous sulphate of lead and copper occurring in bright blue monoclinic crystals.
Pittacal :: Pittacal (n.) A dark blue substance obtained from wood tar. It consists of hydrocarbons which when oxidized form the orange-yellow eupittonic compounds, the salts of which are dark blue..
Jack :: "Jack (n.) A flag, containing only the union, without the fly, usually hoisted on a jack staff at the bowsprit cap; -- called also union jack. The American jack is a small blue flag, with a star for each State..
Cerule :: Cerule (a.) Blue; cerulean.
Chalcanthite :: Chalcanthite (n.) Native blue vitriol. See Blue vitriol, under Blue..
Blue :: Blue (superl.) Literary; -- applied to women; -- an abbreviation of bluestocking.
Nonpareil :: Nonpareil (a.) A beautifully colored finch (Passerina ciris), native of the Southern United States. The male has the head and neck deep blue, rump and under parts bright red, back and wings golden green, and the tail bluish purple. Called also painted finch..
Water Sapphire :: Water sapphire () A deep blue variety of iolite, sometimes used as a gem; -- called also saphir d'eau..
Cyanogen :: Cyanogen (n.) A colorless, inflammable, poisonous gas, C2N2, with a peach-blossom odor, so called from its tendency to form blue compounds; obtained by heating ammonium oxalate, mercuric cyanide, etc. It is obtained in combination, forming an alkaline cyanide when nitrogen or a nitrogenous compound is strongly ignited with carbon and soda or potash. It conducts itself like a member of the halogen group of elements, and shows a tendency to form complex compounds. The name is also applied to the u
Sapphire :: Sapphire (n.) Any humming bird of the genus Hylocharis, native of South America. The throat and breast are usually bright blue..
Bluely :: Bluely (adv.) With a blue color.
Mazarine :: Mazarine (n.) Mazarine blue.
Pinchem :: Pinchem (n.) The European blue titmouse.
Gage :: Gage (n.) A variety of plum; as, the greengage; also, the blue gage, frost gage, golden gage, etc., having more or less likeness to the greengage. See Greengage..
Ara :: Ara (n.) A name of the great blue and yellow macaw (Ara ararauna), native of South America..
Lardacein :: Lardacein (n.) A peculiar amyloid substance, colored blue by iodine and sulphuric acid, occurring mainly as an abnormal infiltration into the spleen, liver, etc..
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