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fin
(Encyclopedia)fin, organ of locomotion characteristic of fish and consisting of thin tissue supported by cartilaginous or bony rays. In some fish, e.g., the eel, a single fin extends from the back, around the tail,...snakehead
(Encyclopedia)snakehead, common name for members of the family Channidae, hardy freshwater fish native to S and E Asia and tropical Africa, where they are a popular food fish. Snakeheads are elongated fishes with l...Amadeus VIII
(Encyclopedia)Amadeus VIII ămədēˈəs [key], 1383–1451, count (1391–1416) and duke (from 1416) of Savoy, antipope (1439–49) with the name Felix V. In 1434 he appointed his son regent of Savoy and retired t...Denain
(Encyclopedia)Denain dənăNˈ [key], city, Nord dept., N France. It has ironworks, steel mills, and glass ...bowfin
(Encyclopedia)bowfin, primitive freshwater fish found in the Mississippi basin, the Great Lakes, and E to Vermont. The bowfin has a light covering of rounded, overlapping scales, a large mouth, and sharp teeth. Its...aquaponics
(Encyclopedia)aquaponics, the growing of plants and the raising of fish by combining aquaculture with the techniques of hydroponics, usually on a small scale. Water containing fish waste matter is used as the nutri...Asian carp
(Encyclopedia)Asian carp, term for several large, hardy freshwater fish of the family Cyprinidae (the minnow family) that are native to E Asia and have become invasive species in the United States. The fish, which ...Nicholas V, pope
(Encyclopedia)Nicholas V, 1397–1455, pope (1447–55), an Italian named Tommaso Parentucelli, b. probably Sarzana, Liguria; successor of Eugene IV. From Eugene IV he inherited the antipapal enactments of the Coun...swim bladder
(Encyclopedia)swim bladder, large, thin-walled sac in some fishes that may function in several ways, e.g., as a buoyant float, a sound producer and receptor, and a respiratory organ. The swim bladder, or air bladde...Ernle, Rowland Edmund Prothero, 1st Baron
(Encyclopedia)Ernle, Rowland Edmund Prothero, 1st Baron prŏᵺˈərō, ûrnˈlē [key], 1851–1937, British agriculturist, editor, and writer. He edited the Quarterly Review (1894–99) and was president of the B...Browse by Subject
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