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cloud

(Encyclopedia)CE5 Approximate heights of some types of clouds cloud, aggregation of minute particles of water or ice suspended in the air. Cloudiness (or proportion of the sky covered by any form of cloud),...

anatomy

(Encyclopedia)anatomy ənătˈəmē [key], branch of biology concerned with the study of body structure of various organisms, including humans. Comparative anatomy is concerned with the structural differences of pl...

Moreau, Jeanne

(Encyclopedia)Moreau, Jeanne môrōˈ [key], 1928–2017, French movie actress, b. Paris, studied Conservatoire National d'Art Dramatique. She joined the Comédie Française and was a successful stage actress befo...

Leif Ericsson

(Encyclopedia)Leif Ericsson lēf ĕrˈĭksən [key], Old Norse Leifr Eiriksson, fl. a.d. 999–1000, Norse discoverer of America, b. probably in Iceland; son of Eric the Red. He spent his youth in Greenland and in ...

ruthenium

(Encyclopedia)ruthenium ro͞othēˈnēəm [key], metallic chemical element; symbol Ru; at. no. 44; at. wt. 101.07; m.p. about 2,310℃; b.p. about 3,900℃; sp. gr. 12.41 at 20℃; valence commonly +2, +3, +4, +6, ...

Sade, Donatien Alphonse François, comte de

(Encyclopedia)Sade, Donatien Alphonse François, comte de dônäsyăNˈ älfôNsˈ fräNswäˈ kôNt də säd [key], 1740–1814, French writer and libertine. He is known as the marquis de Sade —the title he held...

Red River Settlement

(Encyclopedia)Red River Settlement, agricultural colony in present Manitoba, North Dakota, and Minnesota. It was the undertaking of Thomas Douglas, 5th earl of Selkirk. Wishing to relieve the dispossessed and impov...

redstart

(Encyclopedia)redstart, common name for an Old World thrush of the genus Phoenicurus, family Turdidae. A small, slender-legged songbird, it is found in woodlands, parks, and heaths. The European redstart, P. phoeni...

marmot

(Encyclopedia)marmot, ground-living rodent of the genus Marmota, of the squirrel family, closely related to the ground squirrel, prairie dog, and chipmunk. Marmots are found in Eurasia and North America; the best-k...

gopher

(Encyclopedia)gopher or pocket gopher, name for the burrowing rodents of the family Geomyidae, found in North America and Central America. The gopher is gray, buff, or dark brown. Its combined head and body length ...