• synonyms


[mon-oh-uh-meen, -am-in]
noun Biochemistry.
  1. any of various biogenic amine neurotransmitters having a single amino group, as dopamine, epinephrine, and norepinephrine.
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Origin of monoamine

First recorded in 1855–60; mono- + amine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for monoamine

Historical Examples of monoamine

  • If tricyclics do not help, MAO inhibitors (monoamine oxidase inhibitors) are usually tried.

    When You Don't Know Where to Turn

    Steven J. Bartlett

British Dictionary definitions for monoamine


  1. a substance, such as adrenaline, noradrenaline, or serotonin, that contains a single amine group
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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

monoamine in Medicine


(mŏn′ō-ămēn, -ə-mēn)
  1. An amine compound containing one amino group, especially a compound that functions as a neurotransmitter.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

monoamine in Science


[mŏn′ō-ămēn, -ə-mēn]
  1. An amine compound containing one amino group (NH2), especially such a compound that functions as a neurotransmitter. The catecholamines and serotonin are monoamines. Abnormal levels of monoamines in the brain have been implicated in mood disorders.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.