plant toxin plant·to·xin uncommon noun 1. any substance produced by plants that is similar in its properties to extracellular bacterial toxin Synonymsplant toxinphytotoxin Related words Broader terms toxin Narrower terms nicotinestrychninebrucinehemlockmycotoxintubocurarine WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
