ANKYLOSIS Meaning of ANKYLOSIS in English n. (also anchylosis) 1 the abnormal stiffening and immobility of a joint by fusion of the bones. 2 such fusion. ankylotic adj.[ mod.L f. Gk agkulosis f. agkuloo crook ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012