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yarrow

(Encyclopedia)yarrow, a plant of the genus Achillea, perennial herbs of the family Asteraceae (aster family), native to north temperate regions. Several species are cultivated as ornamentals for their flat-topped c...

Callias, fl. 449 b.c., Athenian statesman

(Encyclopedia)Callias kălˈēəs [key], fl. 449 b.c., Athenian statesman; he was related to Cimon and also to Aristides. He distinguished himself at the battle of Marathon (490 b.c.) and was a three-time winner of...

blenny

(Encyclopedia)blenny, common name of various species of extremely numerous small fishes belonging to the suborders Blennioidei (blennies) and Notothenioidei (Antarctic blennies). They are characterized by elongated...

Syr Darya

(Encyclopedia)Syr Darya or Syrdarya both: sēr däryäˈ, –därˈyə [key], ancient Jaxartes or Yaxartes, Pers. Sihun, river, c.1,380 mi (2,220 km) long, flowing through Uzbekistan, Tajikistan, and Kazakhstan. On...

Teagarden, Jack

(Encyclopedia)Teagarden, Jack (Weldon Leo Teagarden), 1905–64, American jazz trombonist and singer, b. Vernon, Tex. One of the earliest white bluesmen, he came from a jazz-playing family and was mainly self-taugh...

thresher shark

(Encyclopedia)thresher shark, long-tailed, warm-water shark, genus Alopias. The upper fork of its tail is slender and sickle-shaped and is about equal in length to the rest of the body. This shark uses its tail str...

Sacramento, river, United States

(Encyclopedia)Sacramento, longest river of Calif., c.380 mi (610 km) long, rising near Mt. Shasta, N Calif., and flowing generally SW to Suisun Bay, an arm of San Francisco Bay, where it forms a large delta with th...

Canyonlands National Park

(Encyclopedia)Canyonlands National Park, 337,598 acres (136,679 hectares), SE Utah; est. 1964. Located in a desert region, the park contains a maze of deep canyons and many unusual features carved by wind and water...

porgy

(Encyclopedia)porgy pôrˈgē [key], common name for members of the Sparidae, a family of small-mouthed fishes with strong teeth adapted for crushing their food of shellfish and crustaceans. Porgies are found in wa...

Nile

(Encyclopedia)Nile, longest river in the world, c.4,160 mi (6,695 km) long from its remotest headstream, the Luvironza River in Burundi, central Africa, to its delta on the Mediterranean Sea, NE Egypt. The Nile flo...