coronopolin

Noun

 * 1)  A sesquiterpene lactone (3aS,6S,6aS,9aS,9bR)-6a-hydroxy-6,9a-dimethyl-3-methylidene-4,5,6,7,8,9b-hexahydro-3aH-azuleno[8,7-b]furan-2,9-dione isomeric with coronopilin