airglow
airglow 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.

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:
- electroglow
Synonyms of airglow
Forms of airglow
| plural | airglows |
|---|
Origin of airglow
From air + glow.
Questions about airglow
- What does airglow mean?
- 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.
- What part of speech is airglow?
- Airglow is a noun.
- What is the plural of airglow?
- The plural of airglow is airglows.
Words near airglow in the dictionary
Source and license
Adapted from Wiktionary: airglow (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “airglow.” Word.ws, https://word.ws/airglow. Based on Wiktionary, CC BY-SA 4.0.
