Webster’s Revised Unabridged Dictionary · 1913
Phlorone
Phlo′rone (·rōn), 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.