/flooh fen"euh zeen'/ , n. Pharm.
a potent tranquilizer, C 22 H 26 F 3 N 3 OS, derived from phenothiazine and used in various forms for the management of certain neurological or psychotic disorders and for short-term treatment of acute anxiety.
[ 1955-60; FLU(ORO)- + PHENAZINE ]