commensalism

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com·men·sal·ism

 (kə-mĕn′sə-lĭz′əm)
n.
A symbiotic relationship between two organisms of different species in which one derives some benefit while the other is unaffected.

com·men·sal·ism

(kə-mĕn′sə-lĭz′əm)
A symbiotic relationship between two organisms of different species in which one derives benefit without harming the other. See Note at symbiosis.

commensalism

a relationship between animals or plants in which one lives with or on the other without damage to either. Cf. parasitism.
See also: Animals
the living together of two organisms in a relationship that is beneficial to one and has no effect on the other. — commensal, adj.
See also: Biology
the practice of eating together at the same table. Also commensality. — commensal, n., adj.
See also: Food and Nutrition
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.commensalism - the relation between two different kinds of organisms when one receives benefits from the other without damaging it
interdependence, interdependency, mutuality - a reciprocal relation between interdependent entities (objects or individuals or groups)
References in periodicals archive ?
epidermidis is a common commensal bacterium of the skin, whereas Staphylococcus aureus is a human pathogen.
acnes is a commensal bacterium on healthy skin seems to muddy the picture, until one also recognizes that there are different strains of P.
perfringens is a so-called commensal bacterium that is also found in the guts of healthy people, molecular mimicry cannot be the sole cause of NMO.