Zyg`a*poph"y*sis (?), n.; pl. Zygapophyses (#). [Gr. a yoke + E. apophysis.] Anat.
One of the articular processes of a vertebra, of which there are usually four, two anterior and two posterior. See under Vertebra.
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Zyg`ap*o*phys"i*al (#), a.
© Webster 1913.