Zygapophysis n. : 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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zygapophysis from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "zygapophysis" and related topics at Britannica.com. Pronunciation Symbols. Share this entry: Link to this page: Cite this ...