a. rare. Less correctly apophysal. [f. APOPHYSI-S + -AL.] Belonging to, or of the nature of, an apophysis.
1851. Richardson, Geol., viii. 232. The ventral valve [in Brachiopoda] supports the apophysal apparatus.
1880. Syd. Soc. Lex., Apophysial point, the tender point over a vertebral spinous process which is next to the place of exit of a painful spinal nerve.