Dictionary.com
definitions
  • synonyms

neurotransmitter

[noo r-oh-trans-mit-er, -tranz-, nyoo r-]
noun
  1. any of several chemical substances, as epinephrine or acetylcholine, that transmit nerve impulses across a synapse to a postsynaptic element, as another nerve, muscle, or gland.
Show More

Origin of neurotransmitter

First recorded in 1960–65; neuro- + transmitter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for neurotransmitter

Contemporary Examples


British Dictionary definitions for neurotransmitter

neurotransmitter

noun
  1. a chemical by which a nerve cell communicates with another nerve cell or with a muscle
Show More
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 neurotransmitter

n.

1961, from neuro- + transmitter.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

neurotransmitter in Medicine

neurotransmitter

(nur′ō-trănzmĭt-ər, -trăns-)
n.
  1. Any of the various chemical substances, such as acetylcholine, that transmit nerve impulses across a synapse.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

neurotransmitter in Science

neurotransmitter

[nur′ō-trănzmĭt-ər]
  1. A chemical substance that is produced and secreted by a neuron and then diffuses across a synapse to cause excitation or inhibition of another neuron. Acetylcholine, norepinephrine, dopamine, and serotonin are examples of neurotransmitters.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

neurotransmitter in Culture

neurotransmitter

Any one of a number of chemicals that are used to transmit nerve signals across a synapse. They are sprayed from the end of the “upstream” nerve cell and absorbed by receptors in the “downstream” cell.

Show More

Note

Drugs like Prozac and alcohol affect the emission and reception of neurotransmitters.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.