Main Entry: epiph·y·sis

Pronunciation: \i-ˈpi-fə-səs\

Function: noun

Inflected Form(s): plural epiph·y·ses \-ˌsēz\

Etymology: New Latin, from Greek, growth, from epiphyesthai to grow on, from epi- + phyesthai to grow, middle voice of phyein to bring forth — more at be

Date: 1634

1 : a part or process of a bone that ossifies separately and later becomes ankylosed to the main part of the bone; especially : an end of a long bone
2 : pineal gland