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Louvois, François Michel Le Tellier, marquis de

(Encyclopedia) Louvois, François Michel Le Tellier, marquis deLouvois, François Michel Le Tellier, marquis defräNswäˈ mēshĕlˈ lə tĕlyāˈ märkēˈ də l&oomacr;vwäˈ [key], 1641–91, French statesman,…

norepinephrine

(Encyclopedia) norepinephrinenorepinephrinenôrˌĕpīnĕfˈrən [key], a neurotransmitter in the catecholamine family that mediates chemical communication in the sympathetic nervous system, a branch of the…

atropine

(Encyclopedia) atropineatropineătˈrəpēn, –pĭn [key], alkaloid drug derived from belladonna and other plants of the family Solanaceae (nightshade family). Available either as the tincture or extract…

Asian carp

(Encyclopedia) Asian carp, term for several large, hardy freshwater fish of the family Cyprinidae (the minnow family) that are native to E Asia and have become invasive species in the United States.…

coral snake

(Encyclopedia) coral snake, name for poisonous New World snakes of the same family as the Old World cobras. About 30 species inhabit Mexico, Central America, and N South America; two are found in the…

chaparral

(Encyclopedia) chaparralchaparralchăpərălˈ [key], type of plant community in which shrubs are dominant. It occurs usually in regions having from 10 to 20 in. (25–50 cm) of rainfall annually and with…

electroscope

(Encyclopedia) electroscope, device for detecting electric charge invented by Nollet in 1748. There are various types of electroscopes. The most common has a cylindrical metal case closed by two…

harmonic

(Encyclopedia) harmonic. 1 Physical term describing the vibration in segments of a sound-producing body (see sound). A string vibrates simultaneously in its whole length and in segments of halves,…

African swine fever

(Encyclopedia) African swine fever (ASF), highly contagious, deadly viral disease of swine. Its acute form, which is typically fatal, is characterized by high fever, loss of appetite, lethargy, and…

Wuhan

(Encyclopedia) WuhanWuhanw&oomacr;-hän [key], city (1994 est. pop. 3,519,600), capital of Hubei prov., central China, at the junction of the Han and Chang rivers. The great industrial, commercial…