symphysis (sim-fi-sis) n.
1. a joint in which the bones are separated by fibrocartilage, which minimizes movement and makes the bony structure rigid. Examples are the pubic symphysis (see pubis) and the joints of the backbone, which are separated by intervertebral discs.

2. the line that marks the fusion of two bones that were separate at an early stage of development.

symphysis A joint that is only slightly movable; examples are the joints between the vertebrae of the vertebral column and that between the two pubic bones in the pelvic girdle. The bones at a symphysis articulate by means of smooth layers of cartilage and strong fibres.

symphysis (anat.) union of two bones. XVI. — Gr. súmphusis, esp. of bones, f. SYM- + phúsis growth.

symphysis A joint between bones, which consists of a disc of fibrocartilage allowing limited movement.