Meaning of “skin” - Learner’s Dictionary

skin

noun [ C, U ] uk us /skɪn/
BODY

B1 the outer layer of a person or animal's body:

dark/fair skin
skin cancer
ANIMAL

the outer layer of a dead animal used as leather, fur, etc:

a leopard skin rug
FRUIT

B2 the outer layer of a fruit or vegetable:

a banana/potato skin
LIQUID

a thin, solid layer that forms on the top of a liquid:

A skin had formed on the top of the milk.
COMPUTERS

the particular way that information is arranged and shown on a computer screen

(Definition of “skin noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)