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}.
[1913 Webster]