Also found in: Thesaurus, Medical, Idioms, Encyclopedia.


American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(əˈdrɛnəlɪn) or


(Biochemistry) a hormone that is secreted by the adrenal medulla in response to stress and increases heart rate, pulse rate, and blood pressure, and raises the blood levels of glucose and lipids. It is extracted from animals or synthesized for such medical uses as the treatment of asthma. Chemical name: aminohydroxyphenylpropionic acid; formula: C9H13NO3. US name: epinephrine
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or ep•i•neph•rin

(ˌɛp əˈnɛf rɪn)

1. a hormone secreted by the adrenal medulla upon stimulation by the central nervous system in response to stress, as anger or fear, and acting to increase heart rate, blood pressure, cardiac output, and carbohydrate metabolism.
2. a commercial preparation of this substance, used chiefly as a heart stimulant and antiasthmatic.
Also called adrenaline.
[1895–1900; epi- + Greek nephr(ós) kidney + -ine2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.adrenaline - a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin)adrenaline - a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action
pressor, vasoconstrictive, vasoconstrictor - any agent that causes a narrowing of an opening of a blood vessel: cold or stress or nicotine or epinephrine or norepinephrine or angiotensin or vasopressin or certain drugs; maintains or increases blood pressure
endocrine, hormone, internal secretion - the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
neurotransmitter - a neurochemical that transmits nerve impulses across a synapse
catecholamine - any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n. adrenalina, marca registrada de la epinefrina, hormona usada como vasoconstrictor secretada por la médula suprarrenal.
English-Spanish Medical Dictionary © Farlex 2012


n adrenalina
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
The drugs mentioned above lower blood pressure and heart rate by blocking neurohormonal and adrenaline pathways.
ENPNewswire-August 9, 2019--NPA - Adrenaline auto-injectors patient safety update
He realized these feelings were causing a release of adrenaline into his system. BUNGEE JUMPING Enjoy the most awesome adrenaline experience in the most iconic jump locations, with a few seconds of heartthumping bliss and an experiment with gravity.
Researchers at the University of Warwick have discovered a worrying revelation about the effect of adrenaline on cardiac arrest patients.
The aim of this study was to determine the mean blood glucose concentration in patients with diabetes undergoing tooth extraction after administration of local anesthesia with or without adrenaline. A Randomized control trial (RCT) study was carried out from October 2015 to June 2016 in the Department of Oral and Maxillofacial Surgery of Islamic International Dental Hospital (IIDH) Islamabad on 60 diabetic patients undergoing tooth extraction requiring administration of local anesthesia.
Daniel Kelly, 25, is now a creative designer for Ted Baker and has created an eye-catching campaign to highlight the right and wrong way to administer an adrenaline auto-injector pen and he also runs an allergy blog.
THE family of a woman who died from cardiac arrest say they are "appalled" to finally learn that paramedics did give her useless salt water instead of adrenaline as she lay dying.
Sports equipment at Adrenalin Beach Park -- Official facebook page of Adrenalin Beach camp "The Shore in Ras Gamila Natural Park is gradually inclined toward the red sea water which helps Adrenaline Beach to be worth displaying area for all water activities," Co-Founder of Adrenaline Beach Park Mohamed Salama said to Egypt Today Magazine.