Etymology: From Latin Iuppiter, literally "father Jove", originally a vocative cognate with Greek , á (Zeu pater) "o father Zeus".
- The fifth and by far the largest planet in the Solar System, a gas giant, represented by the symbol â�� in astronomy. Jupiter is known for its Great Red Spot and many moons including the Galilean moons.
- The Roman King of the Gods, also called Jove. Equivalent to the Greek Zeus, Jupiter was one of the children of Saturn.
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Full Definition of Jupiter