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carapace
(Encyclopedia) carapacecarapacekârˈəpās [key], shield, or shell covering, found over all or part of the anterior dorsal portion of an animal. In lobsters, shrimps, crayfish, and crabs, the carapace…Messier catalog
(Encyclopedia) Messier catalogMessier catalogmĕsyāˈ [key], systematic list of nebulae and star clusters. A first list, compiled and published in 1771 by Charles Messier, contained 45 objects. The…Columbia basin project
(Encyclopedia) Columbia basin project, central Wash., a multipurpose development of the U.S. Bureau of Reclamation providing irrigation, hydroelectric power, and flood control. Its key unit, the…Abbeville, city, United States
(Encyclopedia) Abbeville Abbeville ăˈbēvĭl [key], city (2020 pop. 11,760), seat of Vermilion parish, S La., on the Vermilion River, with access to the Intracoastal Waterway…Hartline, Haldan Keffer
(Encyclopedia) Hartline, Haldan Keffer, 1903–83, American physiologist, b. Bloomsburg, Pa., M.D. Johns Hopkins, 1927. From 1931 to 1949 (except for 1940–41), he was a researcher at the Eldridge…yaws
(Encyclopedia) yaws or frambesia, tropical infection of the skin caused by a spirochete (Treponema pertenue) closely related to that causing syphilis. Yaws, however, is not a sexually transmitted…Cancer, in astronomy
(Encyclopedia) Cancer [Lat.,=the crab], in astronomy, constellation lying on the ecliptic (the sun's apparent path through the heavens) between Gemini and Leo; it is a constellation of the zodiac. It…shell
(Encyclopedia) shell, in zoology, hard outer covering secreted by an animal for protection. It is also called the test, crust, or carapace. The term usually refers to the calcareous shells of the…Shklovsky, Iosif Samuilovich
(Encyclopedia) Shklovsky, Iosif SamuilovichShklovsky, Iosif Samuilovichyôsˈĭf səm&oomacr;ēlˈəvĭch shklŏfˈskē [key], 1916–85, Soviet astronomer. He was head of the department of radio-astronomy at…Hispaniola
(Encyclopedia) HispaniolaHispaniolahĭsˌpănyōˈlə [key], Span. EspañolaHispaniolaĕspänyōˈlä [key], second largest island of the West Indies, 29,530 sq mi (76,483 sq km), between Cuba and Puerto Rico.…Trending
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