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Definition of: zygapophysis
(zig'ə·pof'ə·sis) noun plural ·ses (-sēz) Anat.
One of the processes, usually disposed in pairs, by which a vertebra articulates with another; an articular process. [<NL <Gk. zygon a yoke + apophysis a branch. See APOPHYSIS.]
—zyg'a·po·phys'e·al (-pō·fiz'ē·əl) or ·i·al adjective
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