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San Clemente

(Encyclopedia)San Clemente săn klĭmĕnˈtē [key], city (1990 pop. 41,100), Orange co., S Calif., on the Pacific coast; inc. 1928. Camp Pendleton, a large U.S. marine base, adjoins the city, which is chiefly resi...

sea slug

(Encyclopedia)sea slug, name for a marine gastropod mollusk that lacks a shell as an adult and is usually brightly colored. Sea slugs, or nudibranchs, are distributed throughout the world, with the greatest numbers...

sea snake

(Encyclopedia)sea snake, name for any of the venomous marine snakes of the family Hydrophidae, found in tropical waters of the Indian and Pacific oceans. The sea snake's body is flattened laterally and its oarlike ...

shipping

(Encyclopedia)shipping, transportation of passengers and goods on waterways. From prehistoric times shipping has had a major influence on human social development. Water routes, unlike roads, did not need building,...

Integrated Pest Management

(Encyclopedia)Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic pesticides. IPM progr...

Hilleman, Maurice Ralph

(Encyclopedia)Hilleman, Maurice Ralph, 1919–2005, American microbiologist, regarded as the father of modern vaccinology, b. Miles City, Mont., Ph.D Univ. of Chicago, 1941. He joined E. R. Squibb and Sons in 1944,...

Monera

(Encyclopedia)Monera, taxonomic kingdom that comprises the prokaryotes (bacteria and cyanobacteria). Prokaryotes are single-celled organisms that lack a membrane-bound nucleus and usually lack membrane-bound organe...

Ray, John

(Encyclopedia)Ray or Wray, John, 1627–1705, English naturalist. He was extremely influential in laying the foundations of systematic biology. With his pupil Francis Willughby, he planned a complete classification...

secretion

(Encyclopedia)secretion, in biology, substance elaborated by the living material of an animal or plant. Secretions in humans can be produced by a single cell or by a group of cells commonly called a gland. Some sec...

Fraser, Peter

(Encyclopedia)Fraser, Peter, 1884–1950, New Zealand political leader, b. Scotland. He emigrated to New Zealand in 1910. Previously active in Labour politics in London, he was elected to Parliament in 1918, becomi...