scabrin
noun
scab·rin
ˈskabrə̇n
plural -s
: an insecticidal material obtained from the roots of an oxeye (Heliopsis scabra) that contains an isobutyl-amide of a mixture of unsaturated fatty acids
Word History
Etymology
New Latin scabra (specific epithet of Heliopsis scabra) (from Latin, feminine of scaber rough) + English -in