Pronunciation: /əˈdrɛnəˌlaɪn/
noun a hormone secreted by the adrenal glands that increases rates of blood circulation, breathing, and carbohydrate metabolism and prepares muscles for exertion.
A1 Adrenaline makes your heart beat faster when you are scared.
A2 I felt a rush of adrenaline before going on stage to perform.
B1 Extreme sports like bungee jumping can trigger the release of adrenaline in your body.
B2 Athletes often rely on adrenaline to push themselves to their limits during competitions.
C1 The thrill of skydiving can cause a surge of adrenaline that is hard to replicate.
C2 Some people become addicted to the adrenaline rush they get from risky activities.
formal The doctor explained how the release of adrenaline can affect the body's fight or flight response.
informal I always get a rush of adrenaline before going on a roller coaster.
slang I was so pumped full of adrenaline during the concert, I couldn't stop dancing.
figurative The adrenaline of competition fueled her drive to succeed.
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