gas giant

A large planet composed mostly of gaseous hydrogen and helium, along with methane and ammonia; possibly with a solid core.
Syn: Jovian planet, gas giant planet
See Also: ice giant

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  • Gas giant — A gas giant (sometimes also known as a Jovian planet after the planet Jupiter, or giant planet) is a large planet that is not primarily composed of rock or other solid matter. There are four gas giants in our Solar System: Jupiter, Saturn, Uranus …   Wikipedia

  • gas giant — UK / US noun [countable] Word forms gas giant : singular gas giant plural gas giants astronomy a large planet such as Jupiter or Saturn that consists mainly of hydrogen and helium …   English dictionary

  • gas giant — noun any of the four outermost planets in the solar system; much larger than Earth and gaseous in nature (like Jupiter) • Syn: ↑Jovian planet • Hypernyms: ↑planet, ↑major planet • Instance Hyponyms: ↑Jupiter, ↑Neptune, ↑ …   Useful english dictionary

  • gas giant — /ˈgæs dʒaɪənt/ (say gas juyuhnt) noun a large planet, such as Jupiter, that is primarily composed of gas, or gas in liquid state, the gas being mostly hydrogen and helium. Compare terrestrial planet …   Australian English dictionary

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