Gymnopilus gym·no·pi·lus uncommon noun 1. a genus of fungus characterized by the orange color of the spore deposit Synonymsgenus Gymnopilus Related words Word family Gymnopilus spectabilisGymnopilus validipesGymnopilus ventricosus Broader terms fungus genus Parts Cortinariaceae Part of Gymnopilus spectabilisGymnopilus validipesGymnopilus ventricosus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.