Noctilucent
adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Shining or glowing at night, especially of very high-altitude clouds that reflect sunlight long after sunset; nightshining.
Adjective
- 1 shining or glowing by night wordnet
Example
More examples"The mesosphere is cold enough to freeze water vapor into ice clouds. You can see these clouds if sunlight hits them after sunset. They are called noctilucent clouds."
Etymology
From nocti- + lucent.
Related phrases
More for "noctilucent"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.