Definition of adrenaline in English:


(also adrenalin)


  • [mass noun] A hormone secreted by the adrenal glands that increases rates of blood circulation, breathing, and carbohydrate metabolism and prepares muscles for exertion:

    ‘performing live really gets your adrenaline going’
    Also called epinephrine
    • ‘The reason for that is that adrenalin will smooth or relax the muscles in the lungs.’
    • ‘The crew arrived several minutes later and I was able to get drugs into him, including adrenaline.’
    • ‘The adrenalin and lactic acid had dulled the senses and for a moment she'd forgotten who she was and what was happening.’
    • ‘This prolonged increase in adrenaline can have negative health effects on the body.’
    • ‘It hardly stirs the blood into a frenzy of adrenalin and expectation.’
    • ‘A doctor came into the room and adrenalin flooded her system, and her heart rate went up.’
    • ‘I felt a huge rush of adrenaline and for the first time knew I was winning.’
    • ‘Vitamin C in the beans is crucial for a strong immune system and production of the stress hormone adrenalin.’
    • ‘The adrenaline of the initial shock had worn off a bit, and I was able to take in the enormity of the event.’
    • ‘She said stressful moments were products of adrenaline and cortisone in the body.’
    • ‘This is due to the liberation of the hormone adrenaline at these times.’
    • ‘It is known that adrenalin is the hormone that frees fatty acids of the adipose tissues.’
    • ‘The rush of adrenaline to the brain causes the flow of blood to the skin and the internal organs to slow.’
    • ‘When you get angry your heart rate and blood pressure go up and you receive a surge of adrenaline and noradrenaline.’
    • ‘Charged with adrenaline, I took several deep breaths and dived into the sump.’
    • ‘Chemicals such as adrenaline, noradrenaline and cortisol are pumped into the bloodstream.’
    • ‘The familiar rush of adrenalin filled Matt's body and he took a deep breath.’
    • ‘Physical activity cuts adrenaline and produces hormones to improve your mood.’
    • ‘Breathing becomes faster, blood pressure rises and adrenalin is released.’
    • ‘The adrenaline was circulating, surging and pumping in the heat of the moment.’


Early 20th century: from adrenal + -ine.