hyponychium

noun
hy·​po·​nych·​i·​um | \ -ˈnik-ē-əm How to pronounce hyponychium (audio) \

Medical Definition of hyponychium

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

Other Words from hyponychium

hyponychial \ -​ē-​əl How to pronounce hyponychial (audio) \ adjective