anchylosis, n. [NL., fr. Gr. , fr. , fr. to crook, stiffen, fr. crooked: cf. F. ankylose.].
Stiffness or fixation of a joint; formation of a stiff joint. Dunglison. [1913 Webster]
The union of two or more separate bones to from a single bone; the close union of bones or other structures in various animals. [1913 Webster]
abnormal adhesion and rigidity of the bones of a joint. [WordNet 1.5]