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variation, in music

(Encyclopedia) variation, in music, a compositional device in which certain features of a musical unit, e.g., phase, are altered while others are retained in a subsequent statement of the unit.…

bellflower, in botany

(Encyclopedia) bellflower or bluebell, name commonly used as a comprehensive term for members of the Campanulaceae, a family of chiefly herbaceous annuals or perennials of wide distribution,…

Venus, in astronomy

(Encyclopedia) Venus, in astronomy, 2d planet from the sun; it is often called the evening star or morning star and is brighter than any object in the sky except the sun and the moon. Because its…

Vesta, in astronomy

(Encyclopedia) VestaVestavĕsˈtə [key], in astronomy, the fourth asteroid to be discovered. It was found in 1807 by H. Olbers. It is the third largest asteroid in size, with a diameter of c.326 mi (…

turkey , in zoology

(Encyclopedia) turkey, common name for a large game and poultry bird related to the grouse and the pheasant. Its name derives from its “turk-turk” call. Turkeys are indigenous to the New World;…

Uranus , in astronomy

(Encyclopedia) UranusUranusy&oobreve;rāˈnəs, y&oobreve;rˈə– [key], in astronomy, 7th planet from the sun, at a mean distance of 1.78 billion mi (2.87 billion km), with an orbit lying between…

calliope, in music

(Encyclopedia) calliope, in music, an instrument also called steam organ or steam piano in which steam is forced through a series of whistles controlled by a keyboard. It is usually played…

Callisto, in astronomy

(Encyclopedia) CallistoCallistokəlĭsˈtō [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter.

Calypso, in astronomy

(Encyclopedia) Calypso, in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XIV (or S14), Calypso is a small, irregularly shaped (nonspherical) body measuring…