cutis,
tegument,
skin an outer surface (usually thin); "the skin of an airplane"
= synonym
= antonym
= relatert ord
Wiktionary
Substantiv
foreskin -
The retractable fold of skin encompassing the most nerve-dense tissue in the human male, which naturally covers and protects the head of the penis.
Wikipedia
The foreskin is a generally retractable double-layered fold of skin and mucous membrane that covers the glans penis and protects the urinary meatus when the penis is not erect. It is also described as the prepuce, a technically broader term that also includes the clitoral hood in women, to which the foreskin is embryonically homologous.