epiphysis
Concise Oxford English Dictionary © 2008 Oxford University Press:
epiphysis /ɪˈpɪfɪsɪs, ɛ-/
▶noun (pl. epiphyses) Anatomy the end part of a long bone, initially growing separately from the shaft. Compare with diaphysis.
– derivatives
epiphyseal adjective.
epiphyseal adjective.
– origin C17: mod. L., from Gk epiphusis, from epi- ‘in addition’ + phusis ‘growth’.
'epiphysis' also found in these Oxford entries:

