Chem. [f. TRI- 5 + PHEN-, PHENO-.] A formative of names of compounds containing three radical groups formed from the benzene or phene group, C6H6, by loss of hydrogen atoms; e.g., triphenazine [formula].
1890. Jrnl. Chem. Soc., LVIII. 491. The dye … regarded by the author as triphenodioxazine.
1892. Muir & Morley, Watts’ Dict. Chem., III. 830. Triphenazine Dihydride C18H 2N4.
