champignon
/tʃæmˈpɪnjən/(亦作fairy ring champignon)
noun
1- a small edible mushroom with a light brown cap, growing in short grass in both Eurasia and North America and often forming fairy rings洋蘑菇, 食用伞菌, 硬柄小皮伞菌。
1.1
- Marasmius oreades, family Tricholomataceae, class Hymenomycetes.拉丁名Marasmius oreades,口蘑科（或白蘑科）, 层菌纲。
词源
late 16th cent.: from French， diminutive of Old French champagne 'open country' （see CHAMPAIGN）.