Columbia Encyclopedia

Search results

500 results found

stalactite and stalagmite

(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...

American architecture

(Encyclopedia)American architecture, the architecture produced in the geographical area that now constitutes the United States. Wright, generally acknowledged as one of the greatest architects of the 20th cent., ...

Compromise of 1850

(Encyclopedia)Compromise of 1850. The annexation of Texas to the United States and the gain of new territory by the Treaty of Guadalupe Hidalgo at the close of the Mexican War (1848) aggravated the hostility betwee...

Aztec

(Encyclopedia)Aztec ăzˈtĕkˌ [key], Indian people dominating central Mexico at the time of the Spanish conquest. Their language belonged to the Nahuatlan subfamily of Uto-Aztecan languages. They arrived in the V...

Clay, Henry

(Encyclopedia)Clay, Henry, 1777–1852, American statesman, b. Hanover co., Va. In 1828, Clay again supported Adams for President, and Jackson's success bitterly disappointed him. Although he intended to retir...

Costa Rica

(Encyclopedia)CE5 Costa Rica kŏsˈtə rēˈkə [key], officially Republic of Costa Rica, republic (2020 est. pop. ...

Guerrero, Vicente

(Encyclopedia)Guerrero, Vicente vēsānˈtā gār-rāˈrō [key], 1782–1831, Mexican revolutionist and president (Apr.–Dec., 1829). He fought under the command of Morelos y Pavón, spreading the revolution in t...

North American Free Trade Agreement

(Encyclopedia)North American Free Trade Agreement (NAFTA), accord establishing a free-trade zone in North America; it was signed in 1992 by Canada, Mexico, and the United States and took effect on Jan. 1, 1994. NAF...

axolotl

(Encyclopedia)axolotl ăkˈsəlŏtˌəl [key], a salamander, Ambystoma mexicanum, found in certain lakes in the region of Mexico City, which reaches reproductive maturity without losing its larval characteristics. ...

lime, in botany

(Encyclopedia)lime, in botany, small shrublike tree (Citrus aurantifolia) of the family Rutaceae (rue family), one of the citrus fruit trees, similar to the lemon but more spreading and irregular in growth. The tru...