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Dictionary


Ju•pi•ter



Pronunciation: ( jOO'pi-tur), [key]
n.
1. Also called Jove. the supreme deity of the ancient Romans: the god of the heavens and of weather. Cf. Zeus.
2. Astron.the planet fifth in order from the sun, having an equatorial diameter of 88,729 mi. (142,796 km), a mean distance from the sun of 483.6 million mi. (778.3 million km), a period of revolution of 11.86 years, and at least 14 moons. It is the largest planet in the solar system. See table under planet.
3. Mil.a medium-range U.S. ballistic missile of the 1950s, powered by a single liquid-fueled rocket engine.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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