sociation noun3 •The stable interactions and influences among the species within a coenose.Therefore a comparative analysis and a classification of bog plant communities must be undertaken on the basis of sociations. — 2013 •Interactions and relationships among people.Risk cultures lie in non-institutional and anti-institutional sociations. — 2000 •A plant community.In the classification, sociations are first distinguished by the dominant or constant species, or by a combination of them. — 1980 formssociations