Definition of symbioses:
(n) :
A relationship of mutual benefit, especially among different species.
(n) :
(ecology) The close and long-term relationship or interaction between two or more different species in which at least one of the organisms benefit.
(n) :
(especially) The close and long-tern relationship or interaction between two or more different species in which all organisms benefit; mutualism.
(n) :
The state of people of different types, races, cultures, communities, etc., living together.
(n) :
The occurrence of two different or opposing things in the same time and place.