Noun
A relationship of mutual benefit, especially among different species.
(ecology) A close, prolonged association between two or more organisms of different species that normally benefits both members. An interspecies cooperation.
(biology) A close, prolonged association between two or more organisms of different species, regardless of benefit to the members.
The state of people of different types, races, cultures, communities, etc., living together.
The occurrence of two different or opposing things in the same time and place.
Source: en.wiktionary.orgNo prisoner's dilemma here. Over the long term, symbiosis is more useful than parasitism. More fun, too. Ask any mitochondria. Larry Wall
Life is not found in atoms or molecules or genes as such, but in organization; not in symbiosis but in synthesis. Edwin Grant Conklin
There's some kind of dark symbiosis between lunatics and the Postal Service. Don Novello
Because of my medical and ideological training, I am accustomed to saying that life is adaptation and symbiosis. Tabare Vazquez
From symbiosis to parasitism is a short step. The word is now a virus. William S. Burroughs
Human-machine symbiosis is the workforce of the future. Newton Lee