Secretion/sɪˈkriːʃn/ Definition 1 of 3Pro Tip 1/3Bodily Function Used primarily to describe physiological processes related to health or biology. Tear glands are known for the secretion of tears. Pro Tip 2/3Not Always Visible Secretions can be internal and not visible from outside the body. The secretion of digestive enzymes occurs inside the body. Pro Tip 3/3Context Matters The meaning is either neutral or scientific, usually not negative or positive. Doctors studied the patient's secretion to determine the illness.