AIRGLOW

Etymology

Noun

airglow (usually uncountable, plural airglows)

A faint illumination in the sky due to photochemical luminescence in the upper atmosphere, now rarely observed by earthbound humans without the assistance of instruments.

Synonyms

• (faint illumination due to photochemical luminescence): electroglow

Hyponyms

• (faint illumination due to photochemical luminescence): nightglow, dayglow ‎

Source: Wiktionary

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