adrenaline
/əˈdrɛn(ə)lɪn
/(also adrenalin)
noun [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.
- 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 + -ine4.
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- get something off one's chest
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- get something out of one's system
- get something over
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- get stuffed
- gettable
- getter
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- get the nod