Definition of mutualism in US English:



  • 1The doctrine that mutual dependence is necessary to social well-being.

    • ‘Clearly fraternal mutualism was effective for meeting some of the economic needs for many non-whites and poorer members of American society.’
    • ‘The federal government likes to talk about reciprocal obligation and mutualism.’
    • ‘It is a case of mutualism, says Rick Daley, the museum's executive director.’
    • ‘This alternative standard resided in a skilled worker's competence and the mutualism of workplace and union and sanctioned both moderate drinking and a degree of roughness.’
    • ‘Exploitation should be replaced by the mutualism of free producers helping each other and aided by free credit.’
    • ‘The mutualism and fair-mindedness of the sportsman and union man went hand-in-hand.’
    • ‘Idealists believe that they represent the new face of mutualism - a modern form for the ideals of the co-operative movement - while there were those who argued for the benefits of putting local people in control of their hospitals.’
    • ‘It is significant that immigrants invariably chose Irish Catholic friends to act as sponsors where immediate relatives were unavailable, thereby placing these fictive ties on the same level as familial mutualism.’
    • ‘Israeli credit cooperatives are a likely population to generate ideological mutualism for the coops.’
    • ‘The euro does nothing to foster that mutualism.’
    • ‘The closest thing he was capable of was mutualism and even that was a stretch and a rarity.’
    1. 1.1Biology Symbiosis that is beneficial to both organisms involved.
      • ‘One of the best-known forms of mutualism involves insects that pollinate a host plant, then deposit offspring that will ultimately consume many of the seeds.’
      • ‘The fungus and alga of the lichen enjoy the symbiotic relationship of mutualism, each giving the other something that is required.’
      • ‘This suggests that the relationship is one of mutualism.’
      • ‘The presence of a commensal parasite that can display mutualism within a clade of known pathogens suggests dynamic evolutionary interactions.’
      • ‘There are numerous other examples of symbiosis, mutualism, commensalism and parasitism between ray-finned fishes and other groups.’