substance P


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Related to substance P: serotonin, enkephalin

substance P

n.
A short-chain polypeptide that functions as a neurotransmitter especially in the transmission of pain impulses from peripheral receptors to the central nervous system.

[From p(ain).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

substance P


n.
a small peptide released upon stimulation in the nervous system and involved in regulation of the pain threshold.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Substance P's effect "is going to be an important clue or avenue for drug development," says Zaven Khachaturian of the National Institute on Aging, which helped fund the new study.
"Whether substance P is practical to use is very open still," Kowall says.
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