night·​glow ˈnīt-ˌglō How to pronounce nightglow (audio)
: airglow seen during the night

Word History

First Known Use

1843, in the meaning defined above

Time Traveler
The first known use of nightglow was in 1843

Dictionary Entries Near nightglow

Cite this Entry

“Nightglow.” Dictionary, Merriam-Webster, Accessed 14 Jul. 2024.

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