Medical Dictionary

symbiosis

noun sym·bi·o·sis \ˌsim-ˌbī-ˈō-səs, -bē-\
plural sym·bi·o·ses \-ˌsēz\

Definition of SYMBIOSIS

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
March 26, 2015
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