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electrolyte

(Encyclopedia)electrolyte ĭlĕkˈtrəlītˌ [key], electrical conductor in which current is carried by ions rather than by free electrons (as in a metal). Electrolytes include water solutions of acids, bases, or s...

algorithm

(Encyclopedia)algorithm –rĭzˌəm [key] [for Al-Khowarizmi], a clearly defined procedure for obtaining the solution to a general type of problem, often numerical. Much of ordinary arithmetic as traditionally tau...

Abel, Niels Henrik

(Encyclopedia)Abel, Niels Henrik nēls hĕnˈrĭk äˈbəl [key], 1802–29, Norwegian mathematician. While a student at the Univ. of Christiania (Oslo) he did fundamental work on the integration of functional expr...

aspartic acid

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

Boyd Orr, John Boyd Orr, 1st Baron

(Encyclopedia)Boyd Orr, John Boyd Orr, 1st Baron, 1880–1971, British nutritionist and agricultural scientist, b. Scotland, grad. Univ. of Glasgow. He was professor of agriculture at the Univ. of Aberdeen (1942–...

Carrel, Alexis

(Encyclopedia)Carrel, Alexis kärĕlˈ, kə– [key], 1873–1944, American surgeon and experimental biologist, b. near Lyons, France, M.D. Univ. of Lyons, 1900. Coming to the United States in 1905, he joined the s...

tannin

(Encyclopedia)tannin, tannic acid, or gallotannic acid, astringent vegetable product found in a wide variety of plants. Sources include the bark of oak, hemlock, chestnut, and mangrove; the leaves of certain sumac...

Bonifácio, José

(Encyclopedia)Bonifácio, José zho͞ozāˈ bônēfäˈsēō [key], 1763–1838, Brazilian statesman and scientist. He studied in Europe and gained international fame as a geologist before returning (1819) to Brazi...

Rochelle salt

(Encyclopedia)Rochelle salt, colorless to blue-white orthorhombic crystalline salt with a saline, cooling taste. It is also called Seignette salt after Pierre Seignette, an apothecary of La Rochelle, France, who wa...

Dubochet, Jacques

(Encyclopedia)Dubochet, Jacques, 1942–, Swiss biophysicist and molecular biologist, Ph.D., Univ. of Geneva 1973. Dubochet was a researcher at the European Molecular Biology Laboratory in Heidelberg from 1978 to 1...