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Pronunciation varies by accent · noun
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..
Use airglow when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Airglow means 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..
Common synonyms include electroglow.
The opposite depends on the specific sense.
Use airglow where its definition matches the intended context.
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