# methanosphere

> English word · Noun

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

## Etymology
From methane + -o- + -sphere.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/methanosphere