tembotrione noun1 •A pesticide 2-{2-chloro-4-mesyl-3-[(2,2,2-trifluoroethoxy)methyl]benzoyl}cyclohexane-1,3-dioneA mutation to an allele coding for P450 enzymes in corn hybrids reduces tolerance to the mesotrione and tembotrione, especially if the hybrid is homozygous for the non-functional allele. — 2015