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perch

(Encyclopedia)perch, common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perches belong to the large order Perciformes (spiny-finned fishes) ...

cacomistle

(Encyclopedia)cacomistle kăkˈəmĭsˌəl [key], small New World mammal, genus Bassaricus, related to the raccoon. There are two species, one found in Mexico and the SW United States, the other in Central America....

Brownian movement

(Encyclopedia)Brownian movement or motion, zigzag, irregular motion exhibited by minute particles of matter when suspended in a fluid. The effect has been observed in all types of colloidal suspensions (see colloid...

sandpiper

(Encyclopedia)sandpiper, common name for some members of the large family Scolopacidae, small shore birds, including the snipe and the curlew. Sandpipers are wading birds with relatively long legs and long, slender...

Caroline Affair

(Encyclopedia)Caroline Affair. In 1837 a group of men led by William Lyon Mackenzie rebelled in Upper Canada (now Ontario), demanding a more democratic government. There was much sympathy for their cause in the Uni...

purslane

(Encyclopedia)CE5 Purslane, Portulaca oleraceae purslane, common name for some plants of the Portulaceae, a family of herbs and a few small shrubs, chiefly of the Americas. The portulacas or purslanes (genus Po...

duckweed

(Encyclopedia)duckweed, any plant of the genus Lemna and sometimes of related genera. Duckweeds are tiny floating or submerged aquatic plants with reduced or obsolete roots. They flower only rarely, and their flowe...

Francis, Sam

(Encyclopedia)Francis, Sam, 1923–94, American painter, b. San Mateo, Calif. Educated in medicine, Francis began painting while recovering from an injury received in World War II. His mural-sized paintings are sta...

antipodes, in geography

(Encyclopedia)antipodes [Gr.,=having feet opposite], people or places diametrically opposite on the globe. Thus antipodes must be separated by half the circumference of the earth (180°), and one must be as far nor...

Hasbeya

(Encyclopedia)Hasbeya häsbāˈə [key], small town, S Lebanon, at the foot of Mt. Hermon. It was a center of the Druze from the 13th cent. to the 19th cent. The Khulwat el-Bujad, a sacred shrine of the Druze, is o...