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A region of the Earth's (or another planet's) atmosphere or exosphere which is near outer space:
The region of the atmosphere between the Armstrong limit (above which atmospheric pressure is sufficiently low that water boils at the normal temperature of the human body) and the Kármán line (one boundary between Earth's atmosphere and outer space); the region of the atmosphere near space.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: aeronautics, aerospace, aviation, business, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
A region of the Earth's (or another planet's) atmosphere or exosphere which is near outer space:
The mesosphere and lower thermosphere.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: climatology, meteorology, natural-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: MLT, ignorosphere
Antonyms: none provided
A region of the Earth's (or another planet's) atmosphere or exosphere which is near outer space:
The region of the exosphere between the lower bound of space and the lower bound of orbit; the region of space near the Earth.
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
Topics: aeronautics, aerospace, business, engineering, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
