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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....

smog

(Encyclopedia)smog smŏg [key] [smoke+fog], dense, visible air pollution. Smog is commonly of two types. The gray smog of older industrial cities like London and New York derives from the massive combustion of coal...

buffalo, in zoology

(Encyclopedia)buffalo, name commonly applied to the American bison but correctly restricted to certain related African and Asian mammals of the cattle family. The water buffalo, or Indian buffalo, Bubalus bubalis, ...

bustard

(Encyclopedia)bustard bŭsˈtərd [key], a heavy-bodied, ground-running bird of the family Otididae. Various species are found throughout the arid regions of Africa, Asia, Australia, and S Europe. Bustards range in...

pitta

(Encyclopedia)pitta pĭtˈə [key], name used to refer to a genus (Pitta) of small, plump, brightly colored birds. The genus, including some twenty-three species, constitutes the whole of the family Pittidae. Known...

mouse

(Encyclopedia)mouse, name applied to numerous species of small rodents, often having soft gray or brown fur, long hairless tails, and large ears. The chief distinction between these animals and the variety of roden...

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 ...