hyperapophysis

from The Collaborative International Dictionary of English v.0.48

Hyperapophysis \Hy`per*a*poph"y*sis\, n.; pl. {Hyperapophyses}.
   [NL. See {Hyper-}, and {Apophysis}.] (Anat.)
   A lateral and backward-projecting process on the dorsal side
   of a vertebra. -- {Hy`per*ap`o*phys"i*al}, a.
   [1913 Webster]