'Cerulean' definitions:

Definition of 'cerulean'

From: WordNet
adjective
Of a deep somewhat purplish blue color similar to that of a clear October sky; "October's bright blue weather" [syn: azure, cerulean, sky-blue, bright blue]
noun
A light shade of blue [syn: azure, cerulean, sapphire, lazuline, sky-blue]

Definition of 'Cerulean'

From: GCIDE
  • Cerulean \Ce*ru"le*an\, a. [L. caeruleus.] Sky-colored; blue; azure. --Cowper. [1913 Webster]
  • Blue, blue, as if that sky let fall [1913 Webster]
  • A flower from its cerulean wall. --Bryant. [1913 Webster]

Synonyms of 'cerulean'

From: Moby Thesaurus