- 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.
Origin of dopamine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dopamine
The hypothalamus becomes super-charged, the dopamine sets to racing—to violins, the piano, anything.Was The Beatles’ Music Really That Unique? Yeah, It Totally Was.
February 2, 2014
Flooding your brain with dopamine and serotonin, it not only heightens feelings of euphoria, but empathy and love as well.Molly: The Dangerous Drug That’s Too Good to Quit
September 8, 2013
It is entirely clear that the dopamine system responds to physical activity.
And there is evidence that the reverse is true as well, that physical activity levels respond to the dopamine system.
Particular versions of dopamine receptor genes have been associated with higher physical activity and lower body mass index.
- 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
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
- 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.
- 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.