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vas deferens

(Encyclopedia)vas deferens: see reproductive system; vasectomy. ...

axon

(Encyclopedia)axon: see nervous system; synapse. ...

ductless gland

(Encyclopedia)ductless gland: see endocrine system; gland. ...

space medicine

(Encyclopedia)space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the extreme conditions ...

Notre Dame Mountains

(Encyclopedia)Notre Dame Mountains, section of the Appalachian system, extending c.500 mi (800 km) from the Green Mts. of Vermont into the Gaspé Peninsula, Canada. Worn low by erosion, the ancient mountains have a...

Gerlachovský

(Encyclopedia)Gerlachovský gĕrläkh-ôfˈskē [key], peak, 8,711 ft (2,655 m) high, in the Tatra Mts.; highest peak of the Carpathian Mt. system and of Slovakia. ...

planetesimal theory

(Encyclopedia)planetesimal theory plănˌĭtĕsˈəməl [key]: see solar system. ...

Georgia Institute of Technology

(Encyclopedia)Georgia Institute of Technology, in Atlanta, Ga.; coeducational; state supported; chartered 1885, opened 1888. It is a member school in the university system of Georgia. Significant among its faciliti...

Parma Heights

(Encyclopedia)Parma Heights, city (1990 pop. 21,448), Cuyahoga co., NE Ohio, a residential suburb of Cleveland; settled 1818, set off from Parma and inc. 1912. It is surrounded on three sides by Parma, and the two ...

Nature Conservancy

(Encyclopedia)Nature Conservancy, nonprofit organization established in 1951 to preserve or aid in the preservation of natural environments. It protects wilderness areas in the United States and Canada and is affil...