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canvas

(Encyclopedia)canvas, strong, coarse cloth of cotton, flax, hemp, or other fibers, early used as sailcloth. Left in its natural color, bleached, or dyed, it has a wide variety of uses, as for game, duffel, sport, m...

radio frequency

(Encyclopedia)radio frequency, range of electromagnetic waves with a frequency or wavelength suitable for communication uses. Some of these waves serve as carriers of the lower-frequency audio waves; others are mod...

tantalum

(Encyclopedia)tantalum tănˈtələm [key] [from Tantalus], metallic chemical element; symbol Ta; at. no. 73; at. wt. 180.94788; m.p. 2,996℃; b.p. 5,400±100℃; sp. gr. 16.65 at 20℃; valence +2, +3, +4, or +5....

Littleton

(Encyclopedia)Littleton, city (1990 pop. 33,685), seat of Arapahoe co., N central Colo.; platted 1812, inc. 1890. It is a suburb south of Denver in an irrigated farm area. Its manufactures include construction mate...

Affton

(Encyclopedia)Affton, uninc. city, St. Louis co., E Mo., a suburb of St. Louis. Manufacturing includes machinery and medical equipment. Settled in the mid-1800s largely by German immigrants, Affton main...

White Bear Lake

(Encyclopedia)White Bear Lake, city (1990 pop. 24,704), Ramsey and Washington counties, SE Minn., on White Bear Lake; inc. 1922. It is a residential and resort suburb of Minneapolis–St. Paul. Chemicals, medical s...

Louisville, University of

(Encyclopedia)Louisville, University of, at Louisville, Ky.; coeducational; founded 1798 as a seminary, became a college and merged in 1837 with the Medical Institute of the City of Louisville (chartered 1833). In ...

Manitoba, University of

(Encyclopedia)Manitoba, University of, at Winnipeg, Man., Canada; provincially supported, coeducational; chartered 1877. It has faculties of arts and sciences, graduate studies, law, medicine, dentistry, pharmacy, ...

Romeoville

(Encyclopedia)Romeoville, village (1990 pop. 14,074), Will co., NE Ill., on the Des Plaines River, with access to the Illinois and Mississippi Canal and the Chicago Sanitary and Ship Canal; inc. 1901. A suburb of t...

Redwood City

(Encyclopedia)Redwood City, city (1990 pop. 66,072), seat of San Mateo co., W Calif., on San Francisco Bay; inc. 1868. Manufactures include commmunications, electrical, electronic, and medical equipment. There is a...