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Tohono O'Odham

(Encyclopedia)Tohono O'Odham păpˈəgōˌ, päˈ– [key], Native North Americans speaking a language that belongs to the Uto-Aztecan branch of the Aztec-Tanoan linguistic stock (see Native American languages) and...

Espejo, Antonio de

(Encyclopedia)Espejo, Antonio de äntōˈnyō ᵺā āspāˈhō [key], fl. 1582–83, Spanish explorer. In 1582 he was sent out from San Bartolomé, Mexico, to rescue missionaries said to be menaced by the Pueblo p...

geodesic dome

(Encyclopedia)CE5 Geodesic dome geodesic dome jēˌədĕsˈĭk, –dēˈsĭk [key], structure that roughly approximates a hemisphere. Popular in recent years as economical, easily erected buildings, geodesic do...

Gadsden Purchase

(Encyclopedia)Gadsden Purchase gădzˈdən [key], strip of land purchased (1853) by the United States from Mexico. The Treaty of Guadalupe Hidalgo (1848) had described the U.S.-Mexico boundary vaguely, and Presiden...

Gault, in re

(Encyclopedia)Gault, in re ĭn rā gôlt [key], case decided in 1967 by the U.S. Supreme Court. Fifteen-year-old Gerald Gault had been found a delinquent by an Arizona juvenile court and sentenced to the state indu...

Ostrom, Elinor Awan

(Encyclopedia)Ostrom, Elinor Awan, 1933–2012, American political economist, b. Los Angeles, Ph.D. Univ. of California, Los Angeles, 1965. She was on the faculty of the Univ. of Indiana, Bloomington, from 1965 unt...

Oratory, Congregation of the

(Encyclopedia)Oratory, Congregation of the [Lat. abbr., Cong. Orat.], in the Roman Catholic Church, founded in 1575, an association of secular priests organized into independent communities according to the rule wr...

La Farge, Oliver

(Encyclopedia)La Farge, Oliver lä färzh [key], 1901–63, American writer and anthropologist, b. New York City, grad. Harvard (B.A., 1924; M.A., 1929). He conducted three archaeological expeditions to Arizona and...

Prescott, Edward Christian

(Encyclopedia)Prescott, Edward Christian, 1940–, American economist, b. Glen Falls, N.Y., Ph.D. Carnegie Mellon Univ., 1967. Prescott has taught at Carnegie Mellon (1971–80), the Univ. of Minnesota (1980–98, ...

turquoise

(Encyclopedia)turquoise, hydrous phosphate of aluminum and copper, Al2(OH)3PO4·H2O+Cu, used as a gem. It occurs rarely in crystal form, but is usually cryptocrystalline. Turquoise is opaque and has a waxy luster; ...