[pi.per.o.nyl bu.tox.ide] n [piperonal + -yl + butyl + oxide] (1945): an organic compound used in insecticides; esp: an oily liquid containing this compound that is used chiefly as a synergist (as for pyrethrum insecticides)
PIPERONYL BUTOXIDE
Meaning of PIPERONYL BUTOXIDE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012