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heart-lung machine

(Encyclopedia)heart-lung machine, device that maintains the circulation of the blood and the oxygen content of the body when connected with the arteriovenous system; it is also called the pump oxygenator. The machi...

Canada First movement

(Encyclopedia)Canada First movement, party that appeared in Canada soon after confederation (1867). Its purpose was to encourage the growth of nonpartisan loyalty to the new dominion of Canada. In Toronto, in 1874,...

cat's-eye

(Encyclopedia)cat's-eye, gemstone that displays a thin band of reflected light on its surface when cut as a cabochon. Its name is derived from its supposed resemblance to the eye of a cat. The optical effect, known...

Vakhtangov, Yevgeni

(Encyclopedia)Vakhtangov, Yevgeni yĭvgāˈnyē väkhtänˈgôf [key], 1883–1922, Russian actor, producer, and founder of the Moscow theater that bears his name. A pupil and friend of Stanislavsky, Vakhtangov joi...

Abbot, Charles Greeley

(Encyclopedia)Abbot, Charles Greeley, 1872–1973, American astrophysicist, b. Wilton, N.H. He was acting director in 1896 and director in 1907 of the astrophysical observatory of the Smithsonian Institution; he wa...

apartment house

(Encyclopedia)apartment house, building having three or more dwelling units. Numerous early examples of this form of dwelling have been found in remains of Roman and medieval cities and in the 17th-cent. Pueblo vil...

trade association

(Encyclopedia)trade association, group of business people in the same trade or industry organized for the advancement of common interests. The trade association differs from the chamber of commerce in that membersh...

sunflower

(Encyclopedia)sunflower, any plant of the genus Helianthus of the family Asteraceae (aster family), annual or perennial herbs native to the New World and common throughout the United States. In cultivation, the flo...

Star Chamber

(Encyclopedia)Star Chamber, ancient meeting place of the king of England's councilors in the palace of Westminster in London, so called because of stars painted on the ceiling. The court of the Star Chamber develop...

primrose

(Encyclopedia)primrose, common name for the genus Primula of the Primulaceae, a family of low perennial herbs with species found on all continents, most frequently in north temperate regions. Among the better-known...