ionosphere

Fetched 2026-10-26 (cache).

Synonyms: noosphere, ideosphere, homosphere, insphere, cenosphere, zoosphere, nonsphere, oosphere, ionophore, ozonosphere, ionospheric

Antonyms: noosphere, ideosphere, homosphere, insphere, cenosphere, zoosphere, nonsphere, oosphere, ionophore, ozonosphere, ionospheric

Related words from Datamuse; suggestions, not definitions.

Noun

1. The part of the Earth's [[atmosphere]] beginning at an [[altitude]] of about 50 kilometers (31 miles) and extending outward 500 kilometers (310 miles) or more.
2. The similar region of the atmosphere of another planet.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.