Polyaxial

axial. (UK) IPA(key): /ˌpɒl.iˈæk.si.əl/ (US) IPA(key): /ˌpɑ.lɪˈæk.si.əl/ polyaxial (not comparable) Having more than one axis. 2004, Hans-Rudolf Wenk, Andrei

polyaxial screws plural of polyaxial screw

From polyaxial +‎ -ity. polyaxiality (uncountable) The state of being polyaxial

From polyaxial +‎ -ly. polyaxially (not comparable) Using multiple axes. multiaxially

English Wikipedia has an article on: polyaxial screw Wikipedia polyaxial screw (plural polyaxial screws) (surgery) A screw used for connecting vertebrae