The Collaborative International Dictionary of English v.0.48:
Epiphyseal \Ep`i*phys"e*al\, Epiphysial \Ep`i*phys"i*al\, (Anat.) Pertaining to, or having the nature of, an epiphysis. [1913 Webster]WordNet (r) 3.0 (2006):
epiphysial adj 1: relating to the epiphysis of a bone [syn: epiphyseal, epiphysial]