mutualism

Từ điển WordNet v3.1 - WordNet Dictionary

noun

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