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Halley's comet
(Encyclopedia)Halley's comet or Comet Halley hălˈē, hāˈlē [key], periodic comet named for Edmond Halley, who observed it in 1682 and identified it as the one observed in 1531 and 1607. Halley did not live to ...Levittown
(Encyclopedia)Levittown lĕvˈət-tounˌ [key]. 1 Uninc. residential city (1990 pop. 53,286), Nassau co., SE N.Y., on Long Island; founded 1947. Originally about 7 sq mi (18 sq km) of potato fields, it was develope...Bavarian Succession, War of the
(Encyclopedia)Bavarian Succession, War of the, between Austria and Prussia, 1778–79. With the extinction of the Bavarian line of the house of Wittelsbach on the death of Elector Maximilian Joseph in 1777, the duc...yam
(Encyclopedia)yam, common name for some members of the Dioscoreaceae, a family of tropical and subtropical climbing herbs or shrubs with starchy rhizomes often cultivated for food. The largest genus, Dioscorea, is ...vegetative propagation
(Encyclopedia)vegetative propagation, the ability of plants to reproduce without sexual reproduction, by producing new plants from existing vegetative structures. Some plants, such as the Canada thistle and most ba...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,...blister beetle
(Encyclopedia)blister beetle, common name for certain soft-bodied, usually black or brown, mostly elongate and cylindrical beetles belonging to the family Meloidae. Blister beetles are common insects found feeding ...quinoa
(Encyclopedia)quinoa kēnwäˈ [key], tall annual herb (Chenopodium quinoa) of the family Chenopodiaceae (goosefoot family), whose seeds have provided a staple food for peoples of the higher Andes since pre-Columbi...tomato
(Encyclopedia)tomato, plant (Lycopersicon esculentum) of the family Solanaceae (nightshade family), related to the potato and eggplant. Although cultivated in Mexico and Peru for centuries before the European conqu...chromosome
(Encyclopedia)chromosome krōˈməsōmˌ [key], structural carrier of hereditary characteristics, found in the nucleus of every cell and so named for its readiness to absorb dyes. The term chromosome is usually res...Browse by Subject
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