Zygapophysis

Definitions

  • Webster's Revised Unabridged Dictionary
    • n Zygapophysis (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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Century Dictionary and Cyclopedia
    • n zygapophysis A process upon the neural arch of a vertebra corresponding to that called oblique or articular in human anatomy, provided with a facet for articulation with the same process of a preceding or succeeding vertebra, thus serving to interlock the series of vertebral arches. There are normally two pairs of zygapophyses to a vertebra, the two processes (right and left) which are situated upon the anterior border of any arch being called prezygapophyses, and those upon the posterior border, postzygapophyses. Each pair of any one vertebra articulates with the other pair of the next vertebra. See cuts under cervical, dorsal, endoskeleton, hypapophysis, lumbar, vertebra, zygantrum, and zygosphene.
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Chambers's Twentieth Century Dictionary
    • n Zygapophysis zī-ga-pof′i-sis one of the yoke-pieces or articulations of the vertebræ: pl. Zygapoph′ysēs.
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Etymology

Webster's Revised Unabridged Dictionary
Gr. a yoke + E. apophysis,
Chambers's Twentieth Century Dictionary
Gr. zygon, a yoke, apophysis, process.