NACREOUS CLOUD

Pronunciation (US):

(GB):

 I. (noun) 

Sense 1

Meaning:

A luminous iridescent cloud at a high altitude that may be seen when the sun is a few degrees below the horizon

Synonyms:

mother-of-pearl cloud; nacreous cloud

Classified under:

Nouns denoting natural objects (not man-made)

Hypernyms ("nacreous cloud" is a kind of...):

cloud (a visible mass of water or ice particles suspended at a considerable altitude)

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