P3Y4R1E1T1H4R1O1I1D2S1
20 points
PYRETHROIDS is validvalid
PYRETHROID,
PYRETHROID, any of various synthetic compounds related to the pyrethrins, and sharing their insecticidal properties
PYRETHROID,
PYRETHROID, any of various synthetic compounds related to the pyrethrins, and sharing their insecticidal properties