Columbia Encyclopedia

Search results

488 results found

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...

Defense Advanced Research Projects Agency

(Encyclopedia)Defense Advanced Research Projects Agency (DARPA), U.S. government agency administered by the Department of Defense (see Defense, United States Department of). It was established in 1958, in reaction ...

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...

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...

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...

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...

Steinmetz, Charles Proteus

(Encyclopedia)Steinmetz, Charles Proteus stīnˈmĕts [key], 1865–1923, American electrical engineer, b. Breslau, Germany, studied at the Univ. of Breslau. Forced to flee Germany because of his socialist activiti...

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...

Browse by Subject