adrenaline

[ uh-dren-l-in, -een ]
/ əˈdrɛn l ɪn, -ˌin /

noun Biochemistry, Pharmacology.

Origin of adrenaline

First recorded in 1900–05; adrenal + -ine1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for adrenaline

British Dictionary definitions for adrenaline

adrenaline

adrenalin

/ (əˈdrɛnəlɪn) /

noun

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: C 9 H 13 NO 3US name: epinephrine

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for adrenaline

adrenaline

[ ə-drĕnə-lĭn ]

n.

epinephrine

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for adrenaline

adrenaline

[ ə-drĕnə-lĭn ]

See epinephrine.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Culture definitions for adrenaline

adrenaline

[ (uh-dren-l-in) ]

A hormone secreted by the adrenal glands that helps the body meet physical or emotional stress (see endocrine system).


Note

Adrenaline plays a very large role in the fight or flight reaction, which refers to the various processes that occur within the body when it is confronted with some form of mental or physical stress.

Note

Figuratively, the term adrenaline is used in speaking of a high state of excitement: “When the race began, the adrenaline really started pumping.”
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.