A mutant organism that requires several nutrients that are not required by the wild type organism. ... Compare: auxotroph, monoauxotroph. ... (05 Mar 2000) ... 
Type: Term Pronunciation: pol′ē-awks′ō-trōf Definitions: 1. A mutant organism that requires several nutrients that are not required by the wild-type organism.
polyauxotroph A mutant organism that requires several nutrients that are not required by the wild type organism.