from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. See epinephrine.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An alternative name for epinephrine; the hormone and neurotransmitter.

from the GNU version of the Collaborative International Dictionary of English

  • a hormone secreted by the adrenal medulla that acts as a powerful stimulant in reponse to fear or stress; it stimulates autonomic nerve action. It can be obtained as a crystalline substance, C9H13NO3. It is used in medicine as a vasoconstrictor (hemostatic) and cardiac stimulant, also to reduce allergic reactions and to stimulate the heart in cases of cardiac arrest.
  • n. .

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action


from Wiktionary, Creative Commons Attribution/Share-Alike License

From adrenal +‎ -ine.


  • ‡ Figuratively, the term adrenaline is used in speaking of a high state of excitement: “When the race began, the adrenaline really started pumping.


  • Then you get to your hotel and your adrenaline is at its zenith and you can't fall asleep.

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  • The thrill for the amateur is partly based in adrenaline, and it also lies in the dramatic tradition of the sport.

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  • As someone pointed out adrenaline is pounding all round and the police know what there is going to be people there just to cause trouble.

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  • One can only imagine the heart pounding, blood thumpin ', adrenaline shootin' high, that a man gets when he sees one of these beauty's in the wild outdoors!

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  • ` ` I think my adrenaline is going to carry me through the first game. ''

  • These women, in turn, create men with anger management issues who function best (if at all) in jobs where adrenaline is privileged over reasoned discussion.

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  • Since there are people who cheer the Clintons on, their adrenaline is high, they will get depressed when it stops so they will go on.

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  • ` ` The adrenaline is pumping and it's obviously a huge win for our hockey team to come back in the third period and respond after a disappointing outing in Ottawa. ''

  • He said he thought there are other things we do, sports and hunting and target practice, and that even getting stuck climbing up the side of the house gives you a certain adrenaline rush.

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