Jupiter Definition

The chief deity, god of thunder and the skies: identified with the Greek Zeus.
Webster's New World
The largest planet of the solar system and the fifth in distance from the sun: it has a ring composed of microscopic dustlike particles: diameter, c. 142,980 km (c. 88,850 mi); period of revolution, 11.86 earth years; period of rotation, 9.92 hours; 64 satellites; symbol, ♃
Webster's New World

(Roman mythology) The King of the Gods, also called Jove. Equivalent to the Greek Zeus, Jupiter was one of the children of Saturn.


(astronomy) The fifth and by far the largest planet in the Solar System, a gas giant, represented by the symbol ♃ in astronomy. Jupiter is known for its Great Red Spot and many moons including the Galilean moons.


Origin of Jupiter

  • From Latin Iuppiter (“father Jove”), originally a vocative cognate with Ancient Greek Ζεῦ πάτερ (Zeu pater, “o father Zeus”).

    From Wiktionary

  • Latin Iūpiter dyeu- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

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