1. The act, process, or condition of cohering: exhibited strong cohesion in the family unit.
2. Physics The intermolecular attraction by which the elements of a body are held together.
3. Botany The congenital union of parts of the same kind, such as a calyx of five united sepals.
[From Latin cohaesus, past participle of cohaerēre, to cling together; see COHERE.]
co·hesive (-sĭv, -zĭv) adj.
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