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eponychium

American  
[ep-uh-nik-ee-uhm] / ˌɛp əˈnɪk i əm /

noun

plural

eponychia

  1. Embryology. the modified outer layer of the epidermis that partially covers the fetal fingernails and toenails and that persists after birth as the cuticle.

  2. Anatomy. a thin, cuticular fold extending over the lunula of a nail.

Etymology

Origin of eponychium

1880–85; < New Latin, equivalent to ep- ep- + onych- ( onyx ) + -ium -ium

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Eponychium The cuticle of the fingernail is also called the eponychium.

From Textbooks • Jan. 1, 2015

The nail fold that meets the proximal end of the nail body forms the nail cuticle, also called the eponychium.

From Textbooks • Jun. 19, 2013

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.