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albumin

(Encyclopedia) albuminalbuminălby&oomacr;ˈmən [key] [Lat.,=white of egg], member of a class of water-soluble, heat-coagulating proteins. Albumins are widely distributed in plant and animal…

cordage

(Encyclopedia) cordagecordagekôrˈdĭj [key], collective name for rope and other flexible lines. It is used for such purposes as wrapping, hauling, lifting, and power transmission. Early man used…

croton, in botany

(Encyclopedia) crotoncrotonkrōˈtən [key], any of several species of Codiaeum that are widely cultivated as ornamentals and houseplants. The most popular species is C. variegatum, which has many…

humus

(Encyclopedia) humushumushy&oomacr;ˈməs [key], organic matter that has decayed to a relatively stable, amorphous state. It is an important biological constituent of fertile soil. Humus is formed…

hydrogenation

(Encyclopedia) hydrogenationhydrogenationhīdrôjˈənāˌshən, hīˌdrəjənāˈshən [key], chemical reaction of a substance with molecular hydrogen, usually in the presence of a catalyst. A common…

horn, in zoology

(Encyclopedia) horn, in zoology, one of a pair of structures projecting from the head of a hoofed animal, used chiefly as a weapon. In cattle, sheep, Old World antelopes, and related animals the…

Acadia National Park

(Encyclopedia) Acadia National Park, 48,419 acres (19,603 hectares), SE Maine, on the Atlantic coast; est. as Sieur de Monts National Monument 1916, designated Lafayette National Park 1919, renamed…

Milne, A. A.

(Encyclopedia) Milne, A. A. (Alan Alexander Milne)Milne, A. A.mĭln, mĭl [key], 1882–1956, English author. Milne began his literary career as a journalist and later became a regular contributor to…

classical swine fever

(Encyclopedia) classical swine fever or hog cholera, acute, highly infectious viral disease of swine, historically perhaps the most serious disease of swine in North America. It is characterized by…

alanine

(Encyclopedia) CE5 alaninealanineălˈənēnˌ [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins…