| 单词 | eponychium |
| 释义 | eponychium /ep'euh nik"ee euhm/, n. , pl. eponychia /-nik"ee euh/ 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. Anat. a thin, cuticular fold extending over the lunula of a nail. Also, epionychium. [1880-85; < NL, equiv. to ep- EP- + onych- (see ONYX) + -ium -IUM] |
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