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Definition of: cohesion
(kō·hē′zhən) noun
1. The act or state of cohering; union; consistency.
2. Physics That force by which molecules of the same kind or of the same body are held together so that the substance or body resists separation: distinguished from adhesion.
3. Bot. The joining of one part with another. [<F cohésion <L cohaerere COHERE]
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