Main Entry: sym·bi·o·sis

Pronunciation: \ˌsim-ˌbī-ˈō-səs, -bē-\

Function: noun

Inflected Form(s): plural sym·bi·o·ses \-ˌsēz\

1 : the living together of two dissimilar organisms in more or less intimate association or close union
2 : the intimate living together of two dissimilar organisms in a mutually beneficial relationship ; especially : mutualism