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Jharkhand

(Encyclopedia)Jharkhand, state (2001 provisional pop. 26,909,428), 30,775 sq mi (79,714 sq km), E central India; created in 2000 from S Bihar, which now forms its northern border. Other bordering states are Chhatti...

harmonic

(Encyclopedia)harmonic. 1 Physical term describing the vibration in segments of a sound-producing body (see sound). A string vibrates simultaneously in its whole length and in segments of halves, thirds, fourths, e...

Singh, Manmohan

(Encyclopedia)Singh, Manmohan mänmōˈhän sĭng [key], 1932–, Indian economist and government official, prime minister of India (2004–14), b. Gah, West Punjab. Educated at the universities of Punjab, Cambridg...

billiards

(Encyclopedia)billiards, any one of a number of games played with a tapered, leather-tipped stick called a cue and various numbers of balls on a rectangular, cloth-covered slate table with raised and cushioned edge...

biological diversity

(Encyclopedia)biological diversity or biodiversity, the number of species in a given habitat. Scientists have variously estimated that there are from 3 to 30 million extant species, of which 2.5 million have been c...

Mueller, Robert Swan, 3d

(Encyclopedia)Mueller, Robert Swan, 3d, 1944–, American law enforcement official, b. New York City, B.A. Princeton, 1966, M.A. New York Univ., 1967, J.D. Univ. of Virginia School of Law, 1973. After serving in Vi...

lanthanide series

(Encyclopedia)lanthanide series, a series of metallic elements, included in the rare-earth metals, in Group 3 of the periodic table. Members of the series are often called lanthanides, although lanthanum (atomic nu...

senate, Roman

(Encyclopedia)senate, Roman, governing council of the Roman republic. It was the outgrowth of the council of the kings. By the 3d cent. b.c. the senate was a group of 300 men with a high degree of political, legisl...

bohrium

(Encyclopedia)bohrium bôrˈēəm [key], artificially produced radioactive chemical element; symbol Bh; at. no. 107; mass number of most stable isotope 270; m.p., b.p., sp. gr., and valence unknown. Situated in Gro...

ovum

(Encyclopedia)ovum ōˈvəm [key], in biology, specialized plant or animal sex cell, also called the egg, or egg cell. It is the female sex cell, or female gamete; the male gamete is the sperm. The study of the ovu...