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]