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Sunita, Narain

(Encyclopedia)Sunita, Narain, 1961–, Indian writer and environmentalist, b. New Delhi, India, graduated from University of Delhi, honorary degrees from Cranfield ...

Auerbach, Erich

(Encyclopedia)Auerbach, Erich, 1892–1957, German-American philologist, literary scholar, and critic, b. Berlin, Ph.D. Univ. of Greifswald, 1921. He is known primarily for Mimesis: The Representation of Reality in...

opal

(Encyclopedia)opal ōˈpəl [key], a mineral consisting of poorly crystalline to amorphous silica, SiO2·nH2O; the water content is quite variable but usually ranges from 3% to 10%. Common opal is usually colorless...

mamba

(Encyclopedia)mamba, name for African snakes of the genus Dendroaspis, in the cobra family. Widely distributed throughout Africa except in the deserts, mambas have extremely toxic venom. When attacking they raise t...

manure

(Encyclopedia)manure, term used in the United States to refer to excreta of animals, with or without added bedding; also called barnyard manure. In other countries the term often refers to any material used to fert...

Asimov, Isaac

(Encyclopedia)Asimov, Isaac ăzˈəmŏf [key], 1920–92, American author and scientist, b. Petrovichi, USSR, grad. Columbia (B.S., 1939; M.A., 1941; Ph.D., 1948). An astonishingly prolific author, he wrote over 40...

mistletoe

(Encyclopedia)mistletoe, common name for the Loranthaceae, a family of chiefly tropical hemiparasitic herbs and shrubs with leathery evergreen leaves and waxy white berries. They have green leaves, but they manufac...

katydid

(Encyclopedia)katydid, common name of certain large, singing, winged insects belonging to the long-horned grasshopper family (Tettigoniidae) in the order Orthoptera. Katydids are green or, occasionally, pink and ra...

arapaima

(Encyclopedia)arapaima ărˌəpīˈmə [key], tropical fish, genus Arapaima, of the Amazon basin. Arapaimas are perhaps the largest of the strictly freshwater fishes, reportedly reaching a length of 15 ft (4.5 m), ...

turnip

(Encyclopedia)turnip, garden vegetable of the same genus of the family Cruciferae (or Brassicaceae; mustard family) as the cabbage; native to Europe, where it has been long cultivated. The two principal kinds are t...