shamˈpinyən, -pē- also ch-; F shäⁿpēnʸōⁿ noun
( -s )
Etymology: Middle French, alteration of champigneul, from champagne level country — more at champaign
1. obsolete : fungus
2. : an edible fungus ; especially : the common meadow mushroom
3. : a fairy ring ( Marasmius oreades )