1. The biological association of two or more species to their mutual benefit. Cf.:commensalism, mutualistic s., parasitism. 2. The mutual cooperation or interdependence of two persons, as mother and infant, or husband and wife; sometimes used to denote excessive or pathological interdependence of two persons. [G. s., state of living together, fr. sym- + bios, life, + -osis, condition]
- dyadic s. s. between a child and one parent.
- mutualistic s. s. in which all partners obtain an advantage.
- triadic s. s. between a child and both parents.

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sym·bi·o·sis .sim-.bī-'ō-səs, -bē- n, pl -bi·o·ses -.sēz
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

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an intimate and obligatory association between two different species of organism (symbionts) in which there is mutual aid and benefit. Compare commensal, mutualism, parasite.

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sym·bi·o·sis (sim″bi-oґsis) pl. symbioґses [Gr. symbiōsis] 1. in parasitology, the living together or close association of two dissimilar organisms, each of the organisms being known as a symbiont. The association may be beneficial to both (mutualism), beneficial to one without effect on the other (commensalism), beneficial to one and detrimental to the other (parasitism), detrimental to one without effect on the other (amensalism), or detrimental to both (synnecrosis). 2. in psychiatry, a mutually reinforcing relationship between two persons who are dependent on each other; a normal characteristic of the relationship between the mother and infant child.

Medical dictionary. 2011.

Look at other dictionaries:

  • Symbiosis — Sym bi*o sis, n. [NL., fr. Gr. symbi wsis a living together, symbioy^n to live together; sy n with + ? to live.] (Biol.) The living together in more or less imitative association or even close union of two dissimilar organisms. In a broad sense… …   The Collaborative International Dictionary of English

  • symbiosis — 1877, as a biological term, mutually beneficial association of two different organisms, from Mod.L., from Gk. symbiosis a living together, from symbioun live together, from symbios (one) living together (with another), partner, from syn together… …   Etymology dictionary

  • symbiosis — [sim΄bī ō′sis, sim΄bēō′sis] n. [ModL < Gr symbiōsis < symbioun, to live together < syn , together + bios, life: see BIO ] 1. Biol. the intimate living together of two kinds of organisms, esp. if such association is of mutual advantage:… …   English World dictionary

  • symbiosis — symbiosis. См. симбиоз. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • symbiosis — index coalescence Burton s Legal Thesaurus. William C. Burton. 2006 …   Law dictionary

  • symbiosis — ► NOUN (pl. symbioses) Biology ▪ interaction between two different organisms living in close physical association, especially to the advantage of both. DERIVATIVES symbiotic adjective. ORIGIN Greek sumbi sis , from sumbioun live together …   English terms dictionary

  • Symbiosis — Symbiology redirects here. For use of things that represent other things by association, resemblance, or convention, see Symbology. This article is about the biological phenomenon. For other uses, see Symbiosis (disambiguation). For the Marvel… …   Wikipedia

  • symbiosis — [[t]sɪ̱mbio͟ʊsɪs, baɪ [/t]] 1) N UNCOUNT 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) N… …   English dictionary

  • symbiosis — noun (plural symbioses) Etymology: New Latin, from German Symbiose, from Greek symbiōsis state of living together, from symbioun to live together, from symbios living together, from syn + bios life more at quick Date: 1622 1. the living together… …   New Collegiate Dictionary

  • Symbiosis — Symbiose Pour les articles homonymes, voir symbiose (homonymie). Association symbiotique d une bactérie et de l aulne dans un nodule f …   Wikipédia en Français

  • symbiosis — n. [Gr. symbiosis, life together] 1. The mutually beneficial living together of individuals of two different species. 2. Interrelationship of different species of organisms, ranging from beneficial, to neutral, to dehabilitating; symbiotic a; see …   Dictionary of invertebrate zoology

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