Category:Zygapophysis

Zyg`a*poph"y*sis, n.; pl. Zygapophyses. Etym: [gr. apophysis.] (anat.)

Defn: one of the articular processes of a vertebra, of which there Are usually four, two anterior and two posterior. See under vertebra. -- zyg`ap*o*phys"i*al, a.