ce‧ru‧le‧an /səˈruːliən, sɪˈruːliən/ (
also ceˌrulean ˈblue)
noun [uncountable] literary[
Date: 1600-1700;
Language: Latin;
Origin: caeruleus 'dark blue', probably from caelum; ⇒ celestial]
a deep blue colour like a clear sky
—cerulean adjective [TahlilGaran] Dictionary of Contemporary English ▲