n. 1. a. The process or condition of sticking or staying attached: the adhesion of the glue to wood. b. Physics The physical attraction or joining of two substances, especially the macroscopically observable attraction of dissimilar substances. 2. Medicine a. A condition in which bodily tissues that are normally separate grow together. b. A fibrous band of scar tissue that binds together normally separate anatomical structures. 3. Attachment or devotion, as to a religion or belief. [French adhésion, from Latin adhaesiō, adhaesiōn-, from adhaesus, past participle of adhaerēre, to adhere; see ADHERE.] |
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