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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...

reed

(Encyclopedia)reed, name used for several plants of the family Graminae (grass family). The common American reed, also called reedgrass and canegrass, is a tall perennial grass (Phragmites australis), widely distri...

thunderstorm

(Encyclopedia)thunderstorm, violent, local atmospheric disturbance accompanied by lightning, thunder, and heavy rain, often by strong gusts of wind, and sometimes by hail. The typical thunderstorm caused by convect...

toxoplasmosis

(Encyclopedia)toxoplasmosis, infection caused by Toxoplasma gondii, a single-celled parasitic microorganism that can infect most warm-blooded animals but reproduces only in animals of the cat family, who shed the p...

pit viper

(Encyclopedia)pit viper, poisonous snake of the family Crotalidae, primarily a New World family. Like the Old World true vipers (family Viperidae), pit vipers have long, hollow, erectile fangs that are folded back ...

pompano

(Encyclopedia)pompano pŏmˈpənō [key], common name for fishes of the genus Trachinotus, members of a large and important family (Carangidae) of mackerellike fishes, abundant in warm seas around the world. They h...

Copland, Aaron

(Encyclopedia)Copland, Aaron kōpˈlənd [key], 1900–1990, American composer, b. Brooklyn, N.Y. Copland was a pupil of Rubin Goldmark and of Nadia Boulanger, who introduced his work to the United States when she ...

James, Jesse

(Encyclopedia)James, Jesse (Woodson), 1847–82, American outlaw, b. Clay co., Mo. At the age of 15 he joined the Confederate guerrilla band led by William Quantrill and participated in the brutal and bloody civil ...

Austin

(Encyclopedia)Austin. 1 City, seat of Mower co., SE Minn., on the Cedar River, near the Iowa line; inc. 1868. The commercial and industrial center of a rich farm region, it is noted as home to the ...

palladium, chemical element

(Encyclopedia)palladium [Gr. Pallas, goddess of wisdom], metallic chemical element; symbol Pd; at. no. 46; at. wt. 106.42; m.p. 1,554℃; b.p. 2,970℃; sp. gr. 12.02 at 20℃; valence +2, +3, or +4. Palladium is a...