Defn: Blue; cerulean. [Obs.] Dyer.

CERULEAN
Ce*ru"le*an, a. Etym: [L. caeruleus.]

Defn: Sky-colored; blue; azure. Cowper.
Blue, blue, as if that sky let fall
A flower from its cerulean wall. Bryant.

CERULEIN
Ce*ru"le*in, n. [L. caeruleus sky-blue.] (Chem.)

Defn: A fast dyestuff, C20H8O6, made by heating gallein with strong sulphuric acid. It dyes mordanted fabrics green.

CERULEOUS
Ce*ru"le*ous, a.

Defn: Cerulean. [Obs.] Dr. H. More.

CERULESCENT
Ce`ru*les"cent, a. [L. caeruleus sky-blue + -escent.]

Defn: Tending to cerulean; light bluish.

CERULEUM
Ce*ru"le*um, n. [NL.]