nPhorone(Chem) A yellow crystalline substance, having a geraniumlike odor, regarded as a complex derivative of acetone, and obtained from certain camphor compounds.
Century Dictionary and Cyclopedia
nphoroneAn unsaturated ketone, C9H14O or diisopropylidene-acetone, made by the action of quicklime on acetone, and also in other ways. It forms large yellowish-green crystals that melt at 28° C. Its odor somewhat resembles that of the geranium.
Webster's Revised Unabridged Dictionary
Camphor, + acetone,
Phoron made Apollo's masks for many years, and every month Mercury came to his shop for a new one.