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pilocarpine

(Encyclopedia)pilocarpine pīlōkärˈpēn [key], naturally occurring alkaloid obtained from plants of the genus Pilocarpus (family Rutaceae). By mimicking the effects of acetylcholine, pilocarpine acts as a stimul...

Soyer, Alexis Benoît

(Encyclopedia)Soyer, Alexis Benoît älĕksēˈ bənwäˈ swäyāˈ [key], 1809–58, French chef and writer on gastronomy and dietary reform. After the Revolution of 1830 he went to London and was notable as chef ...

musical instruments

(Encyclopedia)musical instruments are classified in various ways, but the system devised in 1914 by Kurt Sachs and E. M. von Hornbostel has been accorded recognition by both anthropologists and musicologists becaus...

Störmer, Horst Ludwig

(Encyclopedia)Störmer, Horst Ludwig, 1949–, German physicist, Ph.D. Univ. of Stuttgart, 1977. He joined the research staff at Bell Labs in Murray Hill, N.J., in 1978. Störmer and Daniel Tsui were co-recipients,...

Wald, George

(Encyclopedia)Wald, George, 1906–97, American biochemist, b. New York City, Ph.D. Columbia, 1932. He spent most of his career on the faculty at Harvard. In 1967 Wald, Haldan K. Hartline, and Ragnar Granit receive...

leukemia

(Encyclopedia)leukemia lo͞okēˈmēə [key], cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) characterized by excessive production of immature or mature leukocytes (white b...

Andorra

(Encyclopedia) CE5 Andorra äNdôrˈ [key], officially Principality of Andorra, autonomous parliamentary co-principality (2020 est. pop. 77.265), 179 sq mi (464 sq km), high in the E ...

Numbers

(Encyclopedia)Numbers, book of the Bible, fourth of the five books of the Law (the Pentateuch or Torah) ascribed by tradition to Moses. Numbers begins at Sinai and ends in Moab on the eve of the Hebrews' entry into...

proof, in mathematics

(Encyclopedia)proof, in mathematics, finite sequence of propositions each of which is either an axiom or follows from preceding propositions by one of the rules of logical inference (see symbolic logic). Mathematic...

fire clay

(Encyclopedia)fire clay, clay that has a high degree of resistance to heat. By the best standards it should have a fusion point higher than 1,600℃. The term “fire clay” is commonly held to exclude kaolin and ...
 

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