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- Also nor·a·dren·a·lin [nawr-uh-dren-l-in]. /ˌnɔr əˈdrɛn l ɪn/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use noradrenaline in a sentence
This effect is probably due to a second neuromodulator, noradrenaline, that’s also being shut off during REM.
The disappearance of noradrenaline from the brain during REM sleep makes it easy for your brain to wander among its weak associations.
British Dictionary definitions for noradrenaline
a hormone secreted by the adrenal medulla, increasing blood pressure and heart rate, and by the endings of sympathetic nerves, when it acts as a neurotransmitter both centrally and peripherally. Formula: C 8 H 11 NO 3: US name: norepinephrine
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
Scientific definitions for noradrenaline
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.