cutis, skin, tegument - a natural protective covering of the body; site of the sense of touch; "your skin is the largest organ of your body"

duct gland, exocrine gland - a gland that secretes externally through a duct

apocrine gland - a large sweat gland that produces both a fluid and an apocrine secretion; in human beings located in hairy regions of the body

eccrine gland - a small sweat gland the produces only a fluid; restricted to the human skin