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Nacreous Cloud

nounverified·updated May 18, 2026

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

MWE

Classifications

Entity Type

Unknownauthoritativeglossary_import_default_pending_classifier
?unassignedlast reviewed

Sensitivity

unclassified

Information Class

unclassified

Variants

synonym
mother-of-pearl cloud
plural
Nacreous Clouds
possessive
Nacreous Cloud's
pluralpossessive
Nacreous Clouds'