1. uncountable noun Symbiosis is a close relationship between two organisms of different kinds which benefits both organisms. [technical] ⇒ ...the link between bacteria, symbiosis, and the evolution of plants and animals. 2. uncountable noun
Symbiosis is any relationship between different things, people, or groups that benefits all the things or people concerned. [+ of] ⇒ ...the cosy symbiosis of the traditional political parties. ⇒ ...a symbiosis between monarch and church.
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