(1) The excretion of fluid by the sweat glands of the skin. SYN: diaphoresis, sudation, sweating.sweat. (2) All fluid loss through normal skin, whether by sweat gland secretion or by diffusion through other skin structures. (3) The hypotonic fluid excreted by the sweat glands; it consists of water containing sodium chloride and phosphate, urea, ammonia, ethereal sulfates, creatinine, fats, and other waste products; the average daily quantity is estimated at about 1500 g. SYN: sudor.sweat (1). [L. per-spiro, pp. -atus, to breathe everywhere]
