[ doh-puh-meen ]
/ ˈdoʊ pəˌmin /


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.
Pharmacology. a dopamine preparation used to increase the force of contraction of the heart in the treatment of shock.

Nearby words

  1. doozer,
  2. doozie,
  3. doozy,
  4. dop,
  5. dopa,
  6. dopaminergic,
  7. dopant,
  8. dopatta,
  9. dope,
  10. dope addict

Compare levodopa.

Origin of dopamine

First recorded in 1955–60; see origin at dopa, amine Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dopamine

British Dictionary definitions for dopamine


/ (ˈdɒpəmɪn) /


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 for dopamine

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

Medicine definitions for dopamine


[ dōpə-mēn′ ]


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.

Science definitions for dopamine


[ dōpə-mēn′ ]

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.