Nightglow

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An airglow at night. uncountable, usually

Example

More examples

"NASA’s Parker Solar Probe mission touched the Sun to provide us the first ever direct observations of the solar atmosphere, the corona, as well as traveling by Venus, where it gave scientists the first complete look at Venus’ orbital dust ring, detected a bright rim around the edge of the planet that may be nightglow, and discovered natural radio emission."

Etymology

From night + glow.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.