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Olney, Jesse

(Encyclopedia)Olney, Jesse ŏlˈnē, ōlˈnē [key], 1798–1872, American geographer and teacher. His Practical System of Modern Geography (1828), a standard work for decades, revolutionized the teaching of geogra...

ombú

(Encyclopedia)ombú ōmbo͞oˈ [key], large evergreen tree (Phytolacca dioica) of the pampas of Argentina and Uruguay. It has an umbrellalike spread of foliage; the trunk may attain a girth of 40 to 50 ft (12.2–1...

Ono, Yoko

(Encyclopedia) Ono, Yoko, 1933- , Japanese-American conceptual artist, songwriter, and recording artist, b. Tokyo, Japan. Ono’s father was a banker and her mother ...

Oregon, state, United States

(Encyclopedia)CE5 Oregon ŏrˈĭgən, –gŏn [key], state in the Pacific Northwest of the United States. It is bordered by Washington, largely across the Columbia River (N), Idaho, partially across the Snake Ri...

Orontes

(Encyclopedia)Orontes ōrŏnˈtēs [key], Arab. Nahr al-Asi, river, c.250 mi (400 km) long, rising in the northern part of the Al Biqa valley, Lebanon, and flowing generally N through Syria, then W into S Turkey an...

Osborne, Thomas Burr

(Encyclopedia)Osborne, Thomas Burr, 1859–1929, American chemist, b. New Haven, Conn., grad. Yale, 1881. From 1886 he was with the Connecticut Agricultural Experiment Station. An authority on nutrition, especially...

Osiris

(Encyclopedia)Osiris ōsīˈrĭs [key], in Egyptian religion, legendary ruler of predynastic Egypt and god of the underworld. He was the son of the sky goddess Nut and the earth god Geb. The great benefactor of man...

Outer Barrier

(Encyclopedia)Outer Barrier, series of sandy barrier islands or offshore bars, extending c.75 mi (120 km) along the south shore of Long Island, SE N.Y., from Rockaway Beach at the west to the east end of Shinnecock...

Owen, Wilfred

(Encyclopedia)Owen, Wilfred, 1893–1918, English poet, b. Oswestry, Shropshire. He served as a company commander in the Artist's Rifles during World War I and was killed in France on Nov. 4, 1918, one week before ...

Aznar López, José María

(Encyclopedia)Aznar López, José María hōzāˈ märēˈə äsˈnär lōˈpās [key], 1953–, Spanish politician, prime minister of Spain (1996–2004), b. Madrid. Originally a lawyer and tax inspector, he joine...