airglow

English

Etymology

From air +‎ glow.

Noun

airglow (usually uncountable, plural airglows)

1. 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

References

• airglow on Wikipedia.Wikipedia
• Category:airglow on Wikimedia Commons.Wikimedia Commons