Noun | 1. | Hygrotrama - a genus of fungi belonging to the family Hygrophoraceae fungus genus - includes lichen genera family Hygrophoraceae, Hygrophoraceae - a family of fungi belonging to the order Agaricales; the gills of these fungi have a clean waxy appearance Hygrotrama foetens - a small grey-brown fungus with an unpleasant odor of mothballs |