Definition of avens
- a plant of the rose family, typically having serrated, divided leaves and seeds bearing small hooks. Several kinds are grown in gardens.
- Genus Geum, family Rosaceae: several species, including the widespread water avens (G. rivale), with drooping pinkish flowers, and the mat-forming alpine avens (G. montanum)
Middle English: from Old French avence (medieval Latin avencia), of unknown origin