mutualism

mutualism
Symbiotic relationship in which both species derive benefit. Cf.:commensalism, metabiosis, parasitism.

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mu·tu·al·ism 'myüch-(ə-)wə-.liz-əm, 'myü-chə-.liz- n mutually beneficial association between different kinds of organisms
mu·tu·al·ist -ləst n
mu·tu·al·is·tic .myüch-(ə-)wə-'lis-tik, .myü-chə-'lis- adj

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n.
the intimate but not necessarily obligatory association between two different species of organism in which there is mutual aid and benefit. Compare symbiosis.

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mu·tu·al·ism (muґchoo-əl-iz-əm) symbiosis in which both populations (or individuals) gain from the association and are unable to survive without it.

Medical dictionary. 2011.

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