Columbia Encyclopedia

Search results

500 results found

bulldog

(Encyclopedia)bulldog, breed of thick-set nonsporting dog developed in the British Isles many centuries ago. It stands from 13 to 15 in. (33–38.1 cm) high at the shoulder and weighs from 40 to 50 lb (18.1–22.7 ...

Brown, Margaret Wise

(Encyclopedia)Brown, Margaret Wise, 1910–52, American children's book author, b. Brooklyn, N.Y., B.A Hollins College, 1932. Continuing her education at the Bureau of Educational Experiments (now the Bank Street C...

agar, substance obtained from seaweed

(Encyclopedia)agar äˈgär, āˈ–, ăgˈär [key], product obtained from several species of red algae, or seaweed, chiefly from the Ceylon, or Jaffna, moss (Gracilaria lichenoides) and species of Gelidium, harve...

airglow

(Encyclopedia)airglow, faint diffuse illumination of the sky originating in the upper atmosphere. Although it occurs at all times of day throughout the upper atmosphere, it is most typically visible to an observer ...

black widow

(Encyclopedia)black widow, poisonous spider of the genus Latrodectus, found throughout North and South America and common in the SW United States. The name derives from the fact that the female, like those of many ...

bluebird

(Encyclopedia)bluebird, common name for a North American migratory bird of the family Turdidae (thrush family). The eastern bluebird, Sialia sialis, is among the first spring arrivals in the North. It is about 7 in...

blue shift

(Encyclopedia)blue shift or blueshift, in astronomy, the systematic displacement of individual lines in the spectrum of a celestial object toward the blue, or shorter wavelength, end of the visible spectrum. The am...

Wayne, John

(Encyclopedia)Wayne, John, 1907–79, American movie actor, b. Winterset, Iowa, as Marion Michael Morrison. An enduringly popular movie star from his debut in 1930, Wayne combined the toughness necessary to play we...

Zinsser, Hans

(Encyclopedia)Zinsser, Hans zĭnsˈər [key], 1878–1940, American bacteriologist, b. New York City, grad. Columbia (B.A., 1899; M.D., 1903). He was professor of bacteriology at Stanford (1911–13), Columbia (191...

rainbow

(Encyclopedia)rainbow, arc showing the colors of the spectrum, violet inside and red outside, which appears when the sun shines through water droplets. It often appears while the sun is shining after a brief thunde...