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dopamine

[doh-puh-meen]
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noun
  1. Biochemistry. a catecholamine neurotransmitter in the central nervous system, retina, and sympathetic ganglia, acting within the brain to help regulate movement and emotion: its depletion may cause Parkinson's disease.Compare dopa.
  2. Pharmacology. a dopamine preparation used to increase the force of contraction of the heart in the treatment of shock.
Compare levodopa.

Origin of dopamine

First recorded in 1955–60; see origin at dopa, amine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for dopamine

dopamine

noun
  1. a chemical found in the brain that acts as a neurotransmitter and is an intermediate compound in the synthesis of noradrenaline. Formula: (HO) 2 C 6 H 3 (CH 2) 2 NH 2

Word Origin

from d (ihydr) o (xy) p (henylethyl) amine
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

Word Origin and History for dopamine

1959, from DOPA, the amino acid (from first letter of elements of dioxyphenylalanine), + -amine.

Online Etymology Dictionary, © 2010 Douglas Harper

dopamine in Medicine

dopamine

([object Object])
n.
  1. A monoamine neurotransmitter formed in the brain by the decarboxylation of dopa and essential to the normal functioning of the central nervous system. A reduction in its concentration within the brain is associated with Parkinson's disease.3-hydroxytyramine
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

dopamine in Science

dopamine

[dōpə-mēn′]
  1. A monoamine neurotransmitter that is formed during the synthesis of norepinephrine and is essential to the normal functioning of the central nervous system. A reduction of dopamine in the brain is associated with the development of Parkinson's disease. Chemical formula: C8H11NO2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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