ˈskabrə̇n noun
( -s )
Etymology: New Latin scabra (specific epithet of Heliopsis scabra ) (from Latin, feminine of scaber rough) + English -in — more at scabrous
: an insecticidal material obtained from the roots of an oxeye ( Heliopsis scabra ) that contains an isobutyl-amide of a mixture of unsaturated fatty acids