chthonian planet
Noun
Meaning
chthonian planet (plural chthonian planets)
(astronomy) A hypothetical type of planet resulting from the atmosphere and outer layers of a gas giant being stripped away, leaving the rocky, metallic core.
Noun
chthonian planet (plural chthonian planets)
(astronomy) A hypothetical type of planet resulting from the atmosphere and outer layers of a gas giant being stripped away, leaving the rocky, metallic core.