P3Y4R1E1T1H4R1I1N1S1
18 points
PYRETHRINS is validvalid
PYRETHRIN, [n]
PYRETHRIN, either of two insecticidal oily esters prepared from pyrethrum flowers [n]
PYRETHRIN, [n]
PYRETHRIN, either of two insecticidal oily esters prepared from pyrethrum flowers [n]