cuticle

noun

cu·​ti·​cle ˈkyü-ti-kəl 

1

: an outer covering layer: such 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 (such as that surrounding the base and sides of a fingernail)

cuticular

kyu̇-ˈti-kyə-lər 

adjective

Examples of cuticle in a Sentence

Recent Examples on the Web

Chia seed oil, hydrolyzed keratin, and biotin—found in this shampoo and its perfect match, OUAI Fine Hair Conditioner—strengthen the hair cuticle and bring dull strands back to life. —Christa Joanna Lee, Allure, 9 Feb. 2025

Incorporate a Reparative Treatment Because flyaway hair is typically the result of some form of breakage, using a restorative treatment or conditioning mask once or twice a week is a good way to strengthen the cuticle and revive dullness. —Kiana Murden, Vogue, 4 Feb. 2025

The mist forms a protective barrier around the cuticle to prevent thermal damage, while jojoba oil adds shine and boosts hair growth. —Jordan Galloway, SELF, 19 Dec. 2024

Like skin, nails need moisture—using cuticle oils, hand creams, or natural oils like olive and coconut oil can keep them hydrated and prevent brittleness. —Iman Balagam, Vogue, 15 Feb. 2025

Word History

Etymology

Latin cuticula, diminutive of cutis skin — more at hide

First Known Use

1615, in the meaning defined at sense 1

Rhymes for cuticle

• hermeneutical
• pharmaceutical
• radiopharmaceutical

Kids Definition

cuticle

noun

cu·​ti·​cle ˈkyüt-i-kəl 

1

: an outer layer (as of skin or a leaf) often produced by the cells beneath

2

: a dead or horny layer of skin especially around a fingernail

Medical Definition

cuticle

noun

cu·​ti·​cle ˈkyüt-i-kəl 

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)

cuticular

kyu̇-ˈtik-yə-lər 

adjective