symbiosis - Healthline Dictionary Search

(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 ; esp mutualism

Merriam-Webster's Medical Desk Dictionary, 3rd Edition

symbiosis

sim′bē-ō′sis

(1) The biologic association of two or more species. commensalism, mutualistic symbiosis, parasitism (2) The mutual cooperation or interdependence of two people, such as mother and infant, or husband and wife; sometimes used to denote excessive or pathologic interdependence of two people. [G. symbiōsis, state of living together, fr. sym- + bios, life, + -osis, condition]

Stedman's Medical Dictionary, 28th Edition

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