Dī'ar-thrō'sis, n.

n. [Gr. διάρθρωσις, from διαρθροῦν, to joint, to articulate, from διά, through, asunder, and ἀρθροῦν, to fasten by a joint, from ἄρθρον, joint; Fr. diarthrose.] (Anat.) The connection of two bones admitting of motion between them, as at the articulations.