/buy fen"l, -feen"l/ , n. Chem.
a water-insoluble, pleasant-smelling, colorless powder or white scales, C 12 H 10 , composed of two phenyl groups, from which benzidine dyes are derived: used chiefly as a heat-transfer agent and in organic synthesis. Also called diphenyl, phenylbenzene .
[ 1920-25; BI- 1 + PHENYL ]