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gas giant

gas giant

13 4.5
A very large planet like Jupiter or Saturn made mostly of light gases that has no solid surface
  • noun
  • /ɡæs ˈdʒaɪənt/
  • Specialized
translation icon : gigante gaseoso
  • The curious planet is a gas giant, with a diameter some six times larger than that of Earth.
  • gas giants in our solar
  • gas giants form

And this can then tell us how gas giants form.

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Examples

  • A solid core cannot grab its share of hydrogen and helium gas to become a gas giant until it becomes sufficiently massive.

    Academic text (2005)
  • To live on a moon around a gas giant, however, space is your backyard.

    Blog text (7)
  • Little Brother, the smaller gas giant, was on the far side of the sun, out past the wormhole to home.

    Fiction book (2002)
  • And what's funny is in most stellar systems, the gas giants are the closest to their sun, their star.

  • The system also has three smaller terrestrial planets and two gas giants orbiting the star.

  • Another student noted that the terrain of moons orbiting the gas giants could offer clues about the planet's formation.

    Academic text (2006)
  • How does the habitable zone for moons of gas giants compare to the habitable zone for planets?

    Blog text (17)
  • Jupiter is the largest gas giant in our solar system, made mostly of hydrogen and helium.

  • Astronomers recently discovered several new gas giants in distant star systems.

  • Both Saturn and Jupiter are classified as gas giants due to their thick atmospheres.

Synonyms

Jovian planet
vsgas giant
  • Specialized
1 6.8

A very large planet like Jupiter made mostly of gas

specifies chiefly hydrogen and helium rather than gases in general

How Big

gas giant
  • Specialized
13 4.5
planet
1.0
terrestrial planet
  • Specialized
1 4.1
minor planet
  • Specialized
1 6.4

Surface Forms

gas giant singular
gas giants plural

Morphology

gas + giant

The meaning ('a very large object/planet made primarily of gas') is directly and compositionally derivable from 'gas' (gaseous substance) + 'giant' (very large). This literal compound describes a large planet composed of gas and has close parallels in other languages, so a B1 learner who knows both constituents will likely understand it.

Etymology

The noun gas giant paints a simple picture: gas shows what it is made of and giant shows it is very large. So gas giant 'means' a very large planet made mostly of gas with no solid surface, like Jupiter.