näˈnäksə̇nȯl, -ōl, nəˈ- noun
Etymology: non yl + oxy- (II) + phe nol
: a spermatocide used in contraceptive products that consists of a mixture of compounds having the general formula C 15 H 23 (OCH 2 CH 2 ) n OH but having an average of nine ethylene oxide groups per molecule