Source : Webster's Revised Unabridged Dictionary (1913)

Phlorone \Phlo"rone\, n. [Phlorol + quinone.] (Chem.)
   A yellow crystalline substance having a peculiar unpleasant
   odor, resembling the quinones, and obtained from beechwood
   tar and coal tar, as also by the oxidation of xylidine; --
   called also {xyloquinone}.