nacreous cloud
noun
- 1
a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon
Synonyms
Also useful for “nacreous cloud”:Crossword— Multi-word entries show up in clues
a luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon
Also useful for “nacreous cloud”:Crossword— Multi-word entries show up in clues