noun
: an insecticide C 19 H 30 O 5 derived from piperonyl alcohol and the butyl ether of diethylene glycol ; also : an oily liquid containing this compound and related compounds used chiefly as a synergist (as for pyrethrum insecticides)
noun
: an insecticide C 19 H 30 O 5 derived from piperonyl alcohol and the butyl ether of diethylene glycol ; also : an oily liquid containing this compound and related compounds used chiefly as a synergist (as for pyrethrum insecticides)
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012