noun
: an insecticide containing as its principal components two ketones derived from cyclohexenone and related to piperonyl alcohol and used chiefly as a synergist
noun
: an insecticide containing as its principal components two ketones derived from cyclohexenone and related to piperonyl alcohol and used chiefly as a synergist
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012