. "The chemical reactions and pathways resulting in the breakdown of a xenobiotic compound, a compound foreign to living organisms. Used of chemical compounds, e.g. a xenobiotic chemical, such as a pesticide." . . . "xenobiotic catabolic process" . "xenobiotic breakdown" . "xenobiotic catabolism" . "xenobiotic degradation" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .