Adrenaline Definition

noun
The definition of adrenaline is a hormone that causes your heart rate to speed up and gives you more energy.
Epinephrine is an example of adrenaline.
YourDictionary

(biochemistry) An alternative name for epinephrine; the hormone and neurotransmitter.

Wiktionary
Synonyms:
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Origin of Adrenaline

  • From adrenal +"Ž -ine.

    From Wiktionary

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