biǎo​pí

cuticle

表皮 biǎo​pí
cuticle noun
the outer layer of a plant or fruit, or the protective layer of cells

The skin of this kind of apple is very thin.

epidermis noun
the outermost layer of the skin of a human or animal

The skin on his arm was slightly scratched.

Frequency

Movie subtitles
1.64 per million appears in 1% of films
Written text
4.64 per million

Sources

Definitions
CC-CEDICT