adrenaline
🇺🇸
/əˈdrenəlɪn/
🇬🇧
/əˈdrenəlɪn/
A hormone that your body makes when you're excited, scared, or angry. It helps your heart beat faster and gives you more energy and strength.
The excitement of the roller coaster ride caused a surge of adrenaline.
雲霄飛車的刺激讓腎上腺素急遽上升。