Dictionary

cuticle

noun cu·ti·cle \ˈkyü-ti-kəl\

: the layer of dead or hard skin around the base of a fingernail or toenail

Full Definition of CUTICLE

1
:  an outer covering layer: as
a :  an external envelope (as of an insect) secreted usually by epidermal cells
b :  the outermost layer of animal integument composed of epidermis
c :  a thin continuous fatty or waxy film on the external surface of many higher plants that consists chiefly of cutin
d :  the outermost membranous layer of a hair consisting of overlapping scales of epithelial cells
2
:  dead or horny epidermis
cu·tic·u·lar \ky-ˈti-kyə-lər\ adjective

Origin of CUTICLE

Latin cuticula, diminutive of cutis skin — more at hide
First Known Use: 1615

cuticle

noun cu·ti·cle \ˈkyüt-i-kəl\   (Medical Dictionary)

Medical Definition of CUTICLE

1
:  an outer covering layer: as a :  the outermost layer of integument composed of epidermis b :  the outermost membranous layer of a hair consisting of cornified epithelial cells
2
:  dead or horny epidermis (as that surrounding the base and sides of a fingernail or toenail)
cu·tic·u·lar \ky-ˈtik-yə-lər\ adjective

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