1》 a spore-producing fungal growth, often edible and typically having a domed cap with gills on the underside.
2》 a pale pinkish-brown colour.
1》 increase or develop rapidly: environmental concern ~ed in the 1960s.
2》 form a shape resembling that of a ~.
3》 [usu. as noun ~ing ] gather ~s.
ME: from OFr. mousseron , from late L. mussirio(n-) .