Columbia Encyclopedia

Search results

339 results found

Allen, Paul Gardner

(Encyclopedia)Allen, Paul Gardner, 1953–2018, American business executive and philanthropist, b. Seattle. He dropped out of Washington State Univ. (1974) and with his friend Bill Gates co-founded (1975) Microsoft...

Baikonur Cosmodrome

(Encyclopedia)Baikonur or Baykonur Cosmodrome both: bīˌkəno͞orˈ [key], formerly secret aerospace launch complex, Qyzylorda prov., S central Kazakhstan, near Baikonur (originally, 1958–95, Leninsk) but c.200 ...

prostaglandin

(Encyclopedia)prostaglandin prŏsˌtəglănˈdən [key], any of a group of about a dozen compounds synthesized from fatty acids in mammals as well as in lower animals. Prostaglandins are highly potent substances th...

Greuze, Jean-Baptiste

(Encyclopedia)Greuze, Jean-Baptiste zhäN bätēstˈ gröz [key], 1725–1805, French genre and portrait painter. He studied at the Académie Royale and won recognition in 1755 with his Blind Man Deceived. He trave...

Erbil

(Encyclopedia)Erbil bīlˌ –bĭlˌ [key], city and capital of Kurdistan Region, N Iraq. A commercial, agr...

Xalapa

(Encyclopedia)Xalapa ānrēˈkās [key], city (1990 pop. 279,451), capital of Veracruz state, E central Mexico, on the slopes of the Sierra Madre Oriental. It is located in a rich agricultural region of fertile val...

turbulence

(Encyclopedia)turbulence, state of violent or agitated behavior in a fluid. Turbulent behavior is characteristic of systems of large numbers of particles, and its unpredictability and randomness has long thwarted a...

waterway

(Encyclopedia)waterway, natural or artificial navigable inland body of water, or system of interconnected bodies of water, used for transportation, may include a lake, river, canal, or any combination of these. The...

transplantation, medical

(Encyclopedia)transplantation, medical, surgical procedure by which a tissue or organ is removed and replaced by a corresponding part, usually from another part of the body or from another individual. A life-saving...

synthetic textile fibers

(Encyclopedia)synthetic textile fibers have revolutionized the textile industry. Such artificial fibers are usually long-chain polymers, produced industrially by the condensation of many small units. Orlon is the t...