n.
Pronunciation: ' myü-ch ə -w ə - ˌ li-z ə m, ' myü-ch ə - ˌ li-, ' myüch-w ə - ˌ li-
Function: noun
Date: 1849
1 : the doctrine or practice of mutual dependence as the condition of individual and social welfare
2 : mutually beneficial association between different kinds of organisms
– mu · tu · al · ist \ -list \ noun
– mu · tu · al · is · tic \ ˌ myü-ch ə -w ə - ' lis-tik, ˌ myü-ch ə - ' lis-, ˌ myüch-w ə - ' lis- \ adjective