Endocrine/ˈendəkrɪn/ Definition 1 of 2Pro Tip 1/3Medical Context Used specifically in a medical or biological context to discuss bodily functions. After my endocrine check-up, the doctor adjusted my medication. Pro Tip 2/3Science Subjects Frequently appears in subjects like biology, physiology, and medicine. We studied how endocrine glands affect metabolism in biology class. Pro Tip 3/3Hormonal Link Implies a connection with hormones and how they act within the body. Some skin conditions are related to endocrine imbalances.