Meaning of eponychium

ep•o•nych•i•um

Pronunciation: (ep"u-nik'ē-um), [key]
— pl. -nych•i•a
  1. the modified outer layer of the epidermis that partially covers the fetal fingernails and toenails and that persists after birth as the cuticle.
  2. a thin, cuticular fold extending over the lunula of a nail.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.