The Collaborative International Dictionary
cedriret
Coerulignone \C[oe]`ru*lig"none\, n. [L. coeruleus cerulean + lignum wood + E. quinone.] (Chem.) A bluish violet, crystalline substance obtained in the purification of crude wood vinegar. It is regarded as a complex quinone derivative of diphenyl; -- called also cedriret.
Wiktionary
cedriret
n. (context organic compound English) coerulignone