Anat. [ad. mod.L. ab-articulātio, a word-for-word rendering of Gr. ἀπ-άρθρωσις used by Galen, f. ab off, from, + articulātio a jointing, n. of action f. artĭcŭl-āre to join: see ARTICLE.] A kind of articulation admitting of free motion in the joint.
1751. Chambers, Cycl., s.v., Abarticulation, in Anatomy, the same with diarthrosis.
1853. Mayne.