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单词 eponychium
释义

WordReference Random House Unabridged Dictionary of American English © 2024
ep•o•nych•i•um  (ep′ə nikē əm),USA pronunciation n., pl. -nych•i•a 
    (-nikē ə),USA pronunciation 
  1. [Embryol.]the modified outer layer of the epidermis that partially covers the fetal fingernails and toenails and that persists after birth as the cuticle.
  2. Anatomya thin, cuticular fold extending over the lunula of a nail.
Also, epionychium. 
  • Neo-Latin, equivalent. to ep- ep- + onych- (see onyx) + -ium -ium
  • 1880–85

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