family Tilletiaceae fa·mi·ly·tilletiaceae uncommon noun 1. a family of smut fungi having a simple promycelium bearing the spores in an apical cluster SynonymsTilletiaceaefamily Tilletiaceae Related words Broader terms fungus family Parts Ustilaginales Part of TilletiaUrocystis WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
