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The coloring matter of the blood in the living animal; hæmoglobin.

A colorless crystalline alkaloid obtained in small quantities from opium.

The material of quartz, in crystallization transparent or nearly so, and either colorless or slightly tinged with gray, or the like; - - called also rock crystal. Ornamental vessels are made of it. Cf. Smoky quartz, Pebble; also Brazilian pebble, under Brazilian.

ube of 4. Cube ore (Min.), pharmacosiderite. It commonly crystallizes in cubes of a green color. -- Cube root. (Math.), the number or quantity which, multiplied into itself, and then into the product, produces the given cube; thus, 3 is the cube root of 27, for 3x3x3 = 27. -- Cube spar (Min.), anhydrite; anhydrous ca…

(Zoöl.) A color marking or structure on the head somewhat resembling a hood.

A powder of a violet red color, difficult to moisten with water, used for making violet or purple dye. It is prepared from certain species of lichen, especially Lecanora tartarea. Ure.

A colorless oily hydrocarbon, C6H5.C3H7, obtained by the distillation of cuminic acid; -- called also cumol.

ted from the curare poison and from the Strychnos toxifera. It is obtained in crystalline colorless salts.

The coloring principle of turmeric, or curcuma root, extracted as an orange yellow crystalline substance, C14H14O4, with a green fluorescence.

To dress or prepare for use by a process of scraping, cleansing, beating, smoothing, and coloring; -- said of leather.

Having an azure color. Pennant.

Of or pertaining to a blue color. Cyanic acid (Chem.), an acid, HOCN, derived from cyanogen, well known in its salts, but never isolated in the free state. -- Cyanic colors (Bot.), those colors (of flowers) having some tinge of blue; -- opposed to xanthic colors. A color of either series may pass into red or white, bu…

The blue coloring matter of flowers; -- called also anthokyan and anthocyanin.

A mineral occuring in thin-bladed crystals and crystalline aggregates, of a sky-blue color. It is a silicate of aluminium. [Written also kyanite.]

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 a…

A disease in which the body is colored blue in its surface, arising usually from a malformation of the heart, which causes an imperfect arterialization of the blood; blue jaundice.

A blue coloring matter supposed by some to be one of the component parts ofchlorophyll.

A colorless, liquid, combustible hydrocarbon, CH3.C6H4.C3H7, of pleasant odor, obtained from oil of cumin, oil of caraway, carvacrol, camphor, etc.; -- called also paracymene, and formerly camphogen.

us. The numerous varieties of cultivated dahlias bear conspicuous flowers which differ in color.

One afflicted with color blindness.