response to xenobiotic stimulus cellular response to chemical stimulus cellular response to xenobiotic stimulus https://github.com/geneontology/go-ontology/issues/19460 Any process that results in a change in state or activity of a cell (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus from a xenobiotic, a compound foreign to the organism exposed to it. It may be synthesized by another organism (like ampicilin) or it can be a synthetic chemical. cellular response to drug GO:0071466 mah GO:0035690 2009-12-18T11:38:48Z