mini-Neptune (English, noun)
expansion: mini-Neptune (plural mini-Neptunes)
Senses:
topics: astronomy
natural-sciences
glosses: A planet less massive than Neptune but resembling Neptune in that it has a thick hydrogen-helium atmosphere, probably with deep layers of ice, rock or liquid oceans (made of water, ammonia, a mixture of both, or heavier volatiles).
Forms:
form: mini-Neptunes
tags: plural