. | 1. | Biology.
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| 2. | Psychiatry. a relationship between two people in which each person is dependent upon and receives reinforcement, whether beneficial or detrimental, from the other. |
| 3. | Psychoanalysis. the relationship between an infant and its mother in which the infant is dependent on the mother both physically and emotionally. |
| 4. | any interdependent or mutually beneficial relationship between two persons, groups, etc. |
symbiosis sym·bi·o·sis (sĭm'bē-ō'sĭs, -bī-)
n. pl. sym·bi·o·ses (-sēz)
A close, prolonged association between two or more different organisms of different species that may, but does not necessarily, benefit each member.
A relationship of mutual benefit or dependence.