adrenaline

US /əˈdrɛnəlɪn/

UK /ə'drenəlɪn/

C1

noun

  • Chemical in the body that responds to stress, fear

other

  • A synthetic form of epinephrine used as a drug, especially to stimulate the heart or to treat anaphylactic shock.
  • The intense excitement and energy felt when in a dangerous or exciting situation.
  • 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.
  • A synthetic form of epinephrine used as a drug to stimulate the heart, increase blood pressure, relax bronchial muscles, and relieve allergic symptoms.