Simple Definition of adrenaline
: a substance that is released in the body of a person who is feeling a strong emotion (such as excitement, fear, or anger) and that causes the heart to beat faster and gives the person more energy
Full Definition of adrenaline
: epinephrine —often used in nontechnical contexts <the fans were jubilant, raucous, their adrenaline running high — W. P. Kinsella>
First Known Use of adrenaline
ADRENALINE Defined for Kids
Seen and Heard
What made you want to look up adrenaline? Please tell us where you read or heard it (including the quote, if possible).