tegument
1. [ noun ] (zoology) a natural protective covering of the body; site of the sense of touch
Synonyms: skin cutis
Examples:

"your skin is the largest organ of your body"

Related terms: connective_tissue body_covering scalp prepuce prepuce skin_graft thick_skin investment buff hangnail dewlap animal_skin integumentary_system wrinkle epidermis sweat_gland freckle pore sebaceous_gland scab macule dermis free_nerve_ending pacinian_corpuscle whitehead blackhead liver_spot skin_cell melanin