adrenaline

US /əˈdrɛnəlɪn/

UK /ə'drenəlɪn/

C1
n. (c./u.)Noun (Countable/Uncountable)Chemical in the body that responds to stress, fear
Kate's body released adrenaline when she saw the escaped lion
n. (c./u.)Noun (Countable/Uncountable)The intense excitement and energy felt when in a dangerous or exciting situation.
The dangerous driving gave him an adrenaline rush
n. (c./u.)Noun (Countable/Uncountable)A synthetic form of epinephrine used as a drug to stimulate the heart, increase blood pressure, relax bronchial muscles, and relieve allergic symptoms.
The emergency doctor injected adrenaline to restart the patient's heart

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