Thermoplanet

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A habitable planet with a surface temperature of 50–100°C, warmer than is optimal for most terrestrial life.

Synonyms

mesoplanet psychroplanet

Etymology

From thermo- + planet.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.