syn·des·mo·sis 
(sĭn′dĕz-mōsĭs, -dĕs-)
(sĭn′dĕz-mōsĭs, -dĕs-)n. pl. syn·des·mo·ses (-sēz)
An articulation in which the bones are joined by a ligament.
[New Latin syndesmōsis : Greek sundesmos, bond, ligament (from sundein, to bind together; see SYNDETIC) + -OSIS.]
syn′des·motic (-mŏtĭk) adj.