Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: adrenal 'of or on the kidneys' (19-21 centuries), from renal; because adrenaline is produced by the adrenal glands

adrenalin

noun
     
Related topics: Human, Medicine
a‧dren‧a‧lin , adrenaline [uncountable]
HBHM a chemical produced by your body when you are afraid, angry, or excited, which makes your heart beat faster:
There's nothing like a good horror film to get the adrenalin going (=make you feel nervously excited).

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