Any of various mushrooms of the genera Agaricus, Fomes, or related genera, having large umbrellalike caps with numerous gills beneath.
The dried fruiting body of certain fungal species in the genus Fomes, formerly used in medicine, especially to inhibit the production of sweat.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.