Methanosphere

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The methane-based analogue of an H₂O water-based hydrosphere; a methane hydrosphere.

Etymology

From methane + -o- + -sphere.

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