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Kelsey, Frances Oldham
(Encyclopedia)Kelsey, Frances Oldham, 1914–2015, Canadian-American pharmacologist, b. Cobble Hill, British Columbia, as Frances Kathleen Oldham, grad. McGill Univ. (B.Sc. 1934, M.Sc. 1935), Univ. of Chicago (Ph.D...depressant
(Encyclopedia)depressant, any one of various substances that diminish functional activity, usually by depressing the nervous system. Barbiturates, sedatives, alcohol, and meprobamate are all depressants. Depressant...logania
(Encyclopedia)logania lōgāˈnēə [key], common name for the Loganiaceae, a family of herbs, shrubs, and trees of warmer climates, including many woody climbing species. Some plants of this family are grown in th...belladonna
(Encyclopedia)belladonna bĕlədŏnˈə [key] or deadly nightshade, poisonous perennial plant, Atropa belladona, of the nightshade family. Native to Europe and now grown in the United States, the plant has reddish,...ginseng
(Encyclopedia)CE5 Dwarf ginseng, Panax trifolium ginseng jĭnˈsĕng [key], common name for the Araliaceae, a family of tropical herbs, shrubs, and trees that are often prickly and sometimes grow as climbing fo...valerian, in botany
(Encyclopedia)CE5 Valerian, Valeriana officinalis valerian, common name for some members of the Valerianaceae, a family chiefly of herbs and shrubs of temperate and colder regions of the Northern Hemisphere; a ...barbiturate
(Encyclopedia)barbiturate bärbĭchˈərātˌ [key], any one of a group of drugs that act as depressants on the central nervous system. High doses depress both nerve and muscle activity and inhibit oxygen consumpti...narcotic
(Encyclopedia)narcotic, any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium, its constituents morphine and codeine, and the morphine derivative hero...herbal medicine
(Encyclopedia)herbal medicine, use of natural plant substances (botanicals) to treat and prevent illness. The practice has existed since prehistoric times and flourishes today as the primary form of medicine for pe...birth
(Encyclopedia)birth or labor, delivery of the fetus by the viviparous mammal. Birth is also known as parturition. Human birth normally occurs about 280 days after onset of the last menstrual period before conceptio...Browse by Subject
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