| Noun | 1. | sweat gland - any of the glands in the skin that secrete perspirationcutis, skin, tegument - a natural protective body covering and site of the sense of touch; "your skin is the largest organ of your body" 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 that produces only a fluid; restricted to the human skin |