from The American Heritage® Dictionary of the English Language, 4th Edition
- n. 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A neurotransmitter associated with movement, attention, learning, and the brain’s pleasure and reward system.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension
dop(a) + amine.(American Heritage® Dictionary of the English Language, Fourth Edition)