- The bodily system that consists of the endocrine glands and the hormones that they secrete. See Note at hormone.
The system of endocrine glands in the body. The endocrine system chemically controls the various functions of cells, tissues, and organs through the secretion of hormones. The endocrine system includes the adrenal glands, parathyroid gland, pituitary gland, and thyroid gland, as well as the ovaries, pancreas, and testes.