zygapophysishttp://www.oed.com/dictionary/zygapophysis_n%3Ftab%3Dmeaning_and_usezygapophysis, n.
First published 1921; not fully revised

zygapophysisnoun

Anatomy and Zoology.
  1. 1854–
    A lateral process on the neural arch of a vertebra, articulating with the corresponding process of the next vertebra; an articular process. There are normally four to each vertebra, viz. right and left anterior (prezygapophyses) and right and left posterior (postzygapophyses).
    1. 1854
      The exogenous parts are the diapophysis.., the parapophysis.., the zygapophysis.., the anapophysis.., the metapophysis.., the hypapophysis.., and the epapophysis.
      R. Owen, Structure of Skeleton & Teeth in Orr's Circle of Sciences: Organic Nature vol. I. 169

zygapophysis, n. was first published in 1921; not fully revised.

zygapophysis, n. was last modified in December 2024.