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[kuh-men-suh-liz-uh m] /kəˈmɛn səˌlɪz əm/
Ecology. a type of relationship between two species of a plant, animal, fungus, etc., in which one lives with, on, or in another without damage to either.
Sociology. peaceful coexistence among individuals or groups having independent or different values or customs.
Origin of commensalism Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Word Origin and History for commensalism

1870, from commensal + -ism.

Online Etymology Dictionary, © 2010 Douglas Harper
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commensalism in Medicine

commensalism com·men·sal·ism (kə-měn'sə-lĭz'əm)
A symbiotic relationship in which one organism derives benefit and the other is unharmed.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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commensalism in Science
A symbiotic relationship in which one organism derives benefit while causing little or no harm to the other. Examples of commensalism include epiphytic plants, which depend on a larger host plant for support but which do not derive any nourishment from it, and remoras, which attach themselves to sharks and feed on their leavings without appreciably hindering their hosts. Compare amensalism, mutualism, parasitism.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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