clubroot fungus club·root·fun·gus uncommon noun 1. a fungus resembling slime mold that causes swellings or distortions of the roots of cabbages and related plants Synonymsclubroot fungusPlasmodiophora brassicae Related words Broader terms fungus Parts Plasmodiophora WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
