am·phi·ar·thro·sis (ām'fē-är-thrō'sĭs) n.
pl.am·phi·ar·thro·ses (-sēz) A type of articulation between bony surfaces that permits limited motion and is connected by ligaments or elastic cartilage, such as that between the vertebrae.
Main Entry: am·phi·ar·thro·sis Pronunciation: -'thrO-s&s Function: noun Inflected Form: pluralam·phi·ar·thro·ses/-"sEz/ : a slightly movable articulation (as a symphysis or a syndesmosis)