Urocystis uro·cys·tis uncommon noun 1. a genus of smut fungi belonging to the family Tilletiaceae Synonymsgenus Urocystis Related words Word family Urocystis cepulaeUrocystis tritici Broader terms fungus genus Parts Tilletiaceae Part of flag smut fungus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
