Definition of adrenaline
: epinephrine ◆Adrenaline is used in both technical and nontechnical contexts. It is commonly used in describing the physiological symptoms (such as increased heart rate and respiration) that occur as part of the body's fight-or-flight response to stress, as when someone is in a dangerous, frightening, or highly competitive situation, as well as the feelings of heightened energy, excitement, strength, and alertness associated with those symptoms. He felt a rush of adrenaline as he parachuted from the airplane. The fans were jubilant, raucous, their adrenaline running high. — W. P. Kinsella My reputation was as a single-day racer; show me the start line and I would win on adrenaline and anger, chopping off my competitors one by one. — Lance Armstrong In figurative use, it suggests a drug that provides something with a jolt of useful energy and stimulation. London's summer antiques scene has been given a massive injection of adrenaline. — Town and Country
Recent Examples of adrenaline from the Web
The student loved the thrill, and Slomkowski found great joy in bringing a child with a disability the competitive adrenaline.
Hunting isn't just an adrenaline-fueled stalk and shoot at an animal.
He’s in ultimate competitive mode – the juices are flowing, the adrenaline is pumping.
Anger gives us a burst of adrenaline and sparks a fight-or-flight response in our nervous system.
A jet boat experience offers a good taste of the natural beauty and history of the Dells along with its newer personality as an adrenaline-inducing water park.
Manta reCHARGED: Ride the ray and feel the rush on this double-launch, adrenaline pumping, roller coaster that features new special effects, colorful lighting and pulsing music.
The company also will operate an outdoor adrenaline zone with a 45-foot multi-purpose climbing wall and event lawn for recreational outdoor climbing and local, regional and national competitive events.
If adrenaline shoots through our systems and our hearts pump faster when chased by a proverbial bear, our emotional defense systems spring into action when faced with possible emotional pain.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'adrenaline.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
ADRENALINE Defined for English Language Learners
Definition of adrenaline for English Language Learners
: 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
ADRENALINE Defined for Kids
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