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Definitions

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

  • n. .
  • 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.

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

Etymologies

From adrenal +‎ -ine. (Wiktionary)

Examples

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

    adrenaline

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

    Archive: Michael in the mirror

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

    Matador for a Day

  • 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.

    G20 police assault verdict SHOCK! « POLICE INSPECTOR BLOG

  • 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!

    Record Bucks of History

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

    USATODAY.com

  • 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.

    Rescue me from Rescue Me

  • 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.

    Exit polls: Nearly half in both states say Wright an issue

  • ` ` 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. ''

    USATODAY.com

  • 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.

    KSR on permaculture « Dyepot, Teapot

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