|  mutualism 
 
 the relation between two different species of organisms that are interdependent;
 each gains benefits from the other
 • Syn:
 symbiosis
 • Derivationally related forms:
 symbiotic (for: symbiosis)
 • Hypernyms:
 mutuality, interdependence, interdependency
 • Hyponyms:
 trophobiosis
 
 
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