symphysis
noun
sym·phy·sis ˈsim(p)-fə-səs 
plural symphyses ˈsim(p)-fə-ˌsēz
1
: an immovable or more or less movable articulation of various bones in the median plane of the body
2
: an articulation in which the bony surfaces are connected by pads of fibrous cartilage without a synovial membrane
Example Sentences
Recent Examples on the Web This injury meant that Listenbee was experiencing serious inflammation in the pubic symphysis (which refers to the cartilage uniting the two pubic bones) and surrounding muscles. 
Michael Mccann, SI.com, 1 Feb. 2018
Michael Mccann, SI.com, 1 Feb. 2018 Word History
Etymology
New Latin, from Greek, state of growing together, from symphyesthai to grow together, from syn- + phyein to make grow, bring forth — more at be
First Known Use
circa 1578, in the meaning defined at sense 1
Medical Definition
symphysis
noun
sym·phy·sis ˈsim(p)-fə-səs
plural symphyses -ˌsēz
1
: an immovable or more or less movable articulation of various bones in the median plane of the body see pubic symphysis
2
: an articulation (as between the bodies of vertebrae) in which the bony surfaces are connected by pads of fibrous cartilage without a synovial membrane