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.
Source: tatoeba (5350120)
Noctilucent
Synonyms for "noctilucent" (1 found)
Ranked by relevance and common usage.
Closest matches (1)
Related word relations
OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.
similar
1 entriesSample sentences
1 total sentences available.