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neurotransmitter

[noo r-oh-trans-mit-er, -tranz-, nyoo r-]
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noun

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.

Origin of neurotransmitter

First recorded in 1960–65; neuro- + transmitter
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for neurotransmitter

neurotransmitter

noun

a chemical by which a nerve cell communicates with another nerve cell or with a muscle
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.

Online Etymology Dictionary, © 2010 Douglas Harper
neurotransmitter in Medicine

neurotransmitter

[nur′ō-trănz′mĭt-ər, -trăns′-]

n.

Any of the various chemical substances, such as acetylcholine, that transmit nerve impulses across a synapse.
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-trănz′mĭt-ər]

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.
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.

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.