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açaí

(Encyclopedia) açaí açaí äˌsäēˈ [key], tree, Euterpe oleracea, of the family Arecaceae (palm family) and its fruit, grown chiefly in Pará state in the Amazon region of…

mildew

(Encyclopedia) mildew, name for certain fungi and protists, for the diseases they cause in various crops, and for the discoloration (and sometimes the weakening and disintegration) they cause in such…

chitin

(Encyclopedia) chitinchitinkītˈən [key], main constituent of the shells of arthropods. Chitin, a polysaccharide (see carbohydrate) analogous in chemical structure to cellulose, consists of units of a…

Karakul sheep

(Encyclopedia) Karakul sheepKarakul sheepkărˈəkəl [key], breed native to central Asia. The newborn lambs usually have tightly curled black fur and are skinned before they are three days old to…

Wichita Falls

(Encyclopedia) Wichita FallsWichita Fallswĭchˈĭtô [key], city (1990 pop. 96,259), seat of Wichita co., N Tex., on the Wichita River; inc. 1889. The city's name comes from the Wichitas and from the…

sphagnum

(Encyclopedia) sphagnumsphagnumsfăgˈnəm [key] or peat moss, any species of the large and widely distributed genus Sphagnum, economically the most valuable moss. Sphagnums, the principal constituent…

truffle

(Encyclopedia) truffletruffletrŭfˈəl [key] [Fr.], subterranean edible fungus that forms a mutually beneficial (symbiotic) relationship with the roots of certain trees and plants. The part of the…

willow

(Encyclopedia) willow, common name for some members of the Salicaceae, a family of deciduous trees and shrubs of worldwide distribution, especially abundant from north temperate to arctic areas. The…