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Thibodaux

(Encyclopedia)Thibodaux tĭbˈədō [key], city (1990 pop. 14,035), seat of Lafourche parish, SE La., on Bayou Lafourche; inc. 1838. It is the commercial center of an oil, gas, sugarcane, and farm area in bayou cou...

Bombelli, Rafael

(Encyclopedia)Bombelli, Rafael, 1526–1572, Italian mathematician and engineer, b. Bologna. When a marsh reclamation project (c.1550–1560) in the Tuscan Appenines on which he was an engineer was suspended, he pe...

Sackville, Thomas, 1st earl of Dorset

(Encyclopedia)Sackville, Thomas, 1st earl of Dorset, 1536–1608, English statesman and poet. A barrister of the Inner Temple, Sackville entered Parliament in 1558, gained favor with Elizabeth I, and was created Ba...

Diaz de la Peña, Narciso Virgilio

(Encyclopedia)Diaz de la Peña, Narciso Virgilio dyäs də lä pānyäˈ [key], 1808–76, French landscape and figure painter of the Barbizon school, b. Bordeaux, of Spanish parents. Mainly self-taught, he was inf...

arrowhead

(Encyclopedia)CE5 Broad-leaved arrowhead, Sagittaria latifolia arrowhead, any plant of the genus Sagittaria, widely distributed marsh or aquatic herbs of the primitive family Alismataceae (water-plantain family...

Williston, Samuel Wendell

(Encyclopedia)Williston, Samuel Wendell, 1851–1918, American paleontologist and entomologist, b. Boston, grad. Kansas State Agricultural College (B.S., 1872) and Yale (M.D., 1880; Ph.D., 1885). He taught at Yale ...

wren

(Encyclopedia)wren, small, plump perching songbird of the family Troglodytidae. There are about 60 wren species, and all except one are restricted to the New World. The plumage is usually brown or reddish above and...

operetta

(Encyclopedia)operetta ŏpərĕtˈə [key], type of light opera with a frivolous, sentimental story, often employing parody and satire and containing both spoken dialogue and much light, pleasant music. In the earl...

Waterford, town, Republic of Ireland

(Encyclopedia)Waterford, town (1991 pop. 41,853), seat of Co. Waterford, S Republic of Ireland, on the Suir River near the head of Waterford Harbour. The port town is a center for the export of fruit, meat, and the...

sepal

(Encyclopedia)sepal, a modified leaf, part of the outermost of the four groups of flower parts. The sepals of a flower are collectively called the calyx and act as a protective covering of the inner flower parts in...