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Irish terrier

(Encyclopedia)Irish terrier, a breed of hardy working terrier developed in the British Isles and believed to be one of the oldest terriers. It stands about 18 in. (46 cm) high at the shoulder and weighs from 25 to ...

alizarin

(Encyclopedia)alizarin əlĭzˈərĭn [key], or 1,2-dihydroxyanthraquinone, mordant vegetable dye obtained originally from the root of the madder plant (Rubia tinctorum), in which it occurs as a glucoside. The term...

Selkirk, town, Canada

(Encyclopedia)Selkirk, town (1991 pop. 9,815), SE Man., Canada, on the Red River. Just S of Lake Winnipeg, it is a port for products from N Manitoba. There are steel mills, foundries, and shipyards in the town. It ...

hematite

(Encyclopedia)hematite hĕmˈətīt [key], mineral, an oxide of iron, Fe2O3, containing about 70% metal, occurring in nature in red to reddish-brown earthy masses and in steel-gray to black crystalline forms. Hemat...

Wright, Harry

(Encyclopedia)Wright, Harry (Wiliam Henry Wright), 1835–95, English-American baseball player and manager, b. Sheffield, England. His father, a professional cricket player, moved the family to New York to join the...

brazilwood

(Encyclopedia)brazilwood, common name for several trees of the family Leguminosae (pulse family) whose wood yields a red dye. The dye has largely been replaced by synthetic dyes for fabrics, but it is still used in...

cardinal, in zoology

(Encyclopedia)cardinal or redbird, common name for a North American songbird of the family Fringillidae (New World finch family). In the eastern cardinal, Richmondena cardinalis, the male is bright scarlet with bla...

color

(Encyclopedia)color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different color cones of the...

color blindness

(Encyclopedia)color blindness, visual defect resulting in the inability to distinguish colors. About 8% of men and 0.5% of women experience some difficulty in color perception. Color blindness is usually an inherit...

Riel, Louis

(Encyclopedia)Riel, Louis lwē rēĕlˈ [key], 1844–85, Canadian insurgent, leader of two rebellions, b. Manitoba, of French and Métis parentage. In 1869–70 he led the rebels of the Red River settlements, main...