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symphysis sym·phy·sis (sĭm'fĭ-sĭs)
n. pl. sym·phy·ses (-sēz')
A form of cartilaginous joint in which union between two bones is effected by fibrocartilage without a synovial membrane.
A union, meeting point, or commissure of two structures.
A growing together of bones originally separate, as of the two pubic bones.
A line or junction thus formed.
A pathological adhesion or growing together.