Dictionary.net

• a large gilled fungus with a broad cap and a long stalk; the cap is dark brown; the white gills turn dark purplish brown with age; edible and choice

2006 - WordNet 3.0
By Princeton University

• a large gilled fungus with a broad cap and a long stalk; the cap is dark brown; the white gills turn dark purplish brown with age; edible and choice

2011 - English Dictionary Database
By DataStellar Co., Ltd