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pit bull

(Encyclopedia) pit bull, dog having a smooth coat, a stocky build, and a blocky head, originally bred for fighting from bulldog and terrier breeds. Pit bulls were used in bull- and bearbaiting for…

Dwight, John

(Encyclopedia) Dwight, John, fl. 1671–98, English potter, reputed founder of the Chelsea porcelain factory. The registration in 1671 of his patent for the “Mistery of transparent earthenware …” is…

frog

(Encyclopedia) frog, common name for an amphibian of the order Anura. Frogs are found all over the world, except in Antarctica. They require moisture and usually live in quiet freshwater or in the…

exobiology

(Encyclopedia) exobiology or astrobiology, search for extraterrestrial life within the solar system and throughout the universe. Philosophical speculation that there might be other worlds similar to…

aquarium

(Encyclopedia) aquarium, name for any supervised exhibit of aquatic animals and plants. Aquariums are known to have been constructed in ancient Rome, Egypt, and Asia. Goldfish have been bred in China…

tropical medicine

(Encyclopedia) tropical medicine, study, diagnosis, treatment, and prevention of certain diseases prevalent in the tropics. The warmth and humidity of the tropics and the often unsanitary conditions…

halophyte

(Encyclopedia) halophytehalophytehălˈəfītˌ [key], any plant, especially a seed plant, that is able to grow in habitats excessively rich in salts, such as salt marshes, sea coasts, and saline or…

Chares

(Encyclopedia) CharesChareskârˈēz, kāˈ– [key], fl. 3d cent. b.c., Greek worker in bronze from Lindus, Rhodes; pupil of Lysippos. He was the sculptor of the Colossus of Rhodes and is said to have…

Al-Khowarizmi

(Encyclopedia) Al-KhowarizmiAl-Khowarizmiäl-khōwärēzˈmē [key], fl. 820, Arab mathematician of the court of Mamun in Baghdad. His treatises on Hindu arithmetic and on algebra made him famous. He is…

Rathlin Island

(Encyclopedia) Rathlin IslandRathlin Islandrăthˈlĭn [key], 5 sq mi (13 sq km), Moyle dist., N Northern Ireland. Its cliffs, of limestone and basalt, rise at Slieveacarn to 449 ft (137 m). Farming and…