relating to a substance foreign to the body or ecological system.
any foreign compound not produced by an organism's metabolism.
forster, w. a., zabkiewicz, j. a., and liu, z. cuticular uptake of xenobiotics into living plants. part 2: influence of the xenobiotic dose on the uptake of bentazone, epoxiconazole and pyraclostrobin, applied in the presence of various surfactants, into chenopodium album, sinapis alba and triticum aestivum leaves. pest.manag.sci 2006;62(7):664-672. view abstract. medicinenet.com