ankylosis
An`ky*lo"sis, n. Defn: Same as Anchylosis. An`chy*lo"sis, An`ky*lo"sis, n. Etym: [NL., fr. Gr. ankylose.] 1. (Med.) Defn: Stiffness or fixation of a joint; formation of a stiff joint. Dunglison. 2. (Anat.) Defn: The union of two or more separate bones to from a single bone; the close union of bones or other structures in various animals.