ALL meanings of epinephrine
- noun epinephrine A hormone secreted by the adrenal glands, especially in conditions of stress, increasing rates of blood circulation, breathing, and carbohydrate metabolism and preparing muscles for exertion. 1
- noun epinephrine a hormone, C9H13NO3, secreted by the medulla of the adrenal gland, that stimulates the heart, increases blood sugar, muscular strength, and endurance, etc.; adrenaline: it is extracted from animal adrenals or prepared synthetically 0