ice giant

[ ahys-jahy-uhnt ]

  1. a giant planet composed mostly of elements heavier than hydrogen and helium: the two ice giants in our solar system are Uranus and Neptune, previously classified as gas giants, but now known to be made primarily of oxygen, carbon, nitrogen, and sulfur.

Origin of ice giant

First recorded in 1975–80

Words Nearby ice giant Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use ice giant in a sentence

  • It lies up there on the crest of the mountain like a mighty ice-giant peering down at us through the clefts.

    Farthest North | Fridtjof Nansen