hyponychium

noun

hy·po·nych·i·um -ˈnik-ē-əm

1

: the thickened layer of epidermis beneath the free end of a nail

2

: matrix sense 1b

hyponychial

-ē-əl

adjective

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“Hyponychium.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hyponychium. Accessed 7 Jul. 2026.

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hyponychium

noun

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