Hypapophysial

Hypapophysis Hy`pa*poph"y*sis, n.; pl. {Hypapophyles}. [NL. See {Hypo-}, and {Apophysis}.] (Anat.) A process, or other element, of a vertebra developed from the ventral side of the centrum, as h[ae]mal spines, and chevron bones. -- {Hy`pa*po*phys"i*al}, a. [1913 Webster]