Definition of adrenaline in English:

adrenaline

Syllabification: a·dren·al·ine
Pronunciation: /əˈdrenl-in
 
/
(also adrenalin)

noun

  • 1A hormone secreted by the adrenal glands, especially in conditions of stress, increasing rates of blood circulation, breathing, and carbohydrate metabolism and preparing muscles for exertion: performing live really gets your adrenaline going Also called epinephrine.
    More example sentences
    • Chemicals such as adrenaline, noradrenaline and cortisol are pumped into the bloodstream.
    • It is known that adrenalin is the hormone that frees fatty acids of the adipose tissues.
    • This is due to the liberation of the hormone adrenaline at these times.
  • 1.1 (Adrenalin) • trademark The hormone epinephrine extracted from animals or prepared synthetically for medicinal purposes.
    More example sentences
    • Chemicals such as adrenaline, noradrenaline and cortisol are pumped into the bloodstream.
    • It is known that adrenalin is the hormone that frees fatty acids of the adipose tissues.
    • This is due to the liberation of the hormone adrenaline at these times.

Origin

early 20th century: from adrenal + -in1.

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