peripheral nervous system

noun
the portion of the nervous system lying outside the brain and spinal cord.

Origin:
1930–35

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

peripheral nervous system n.
The part of the vertebrate nervous system constituting the nerves outside the central nervous system and including the cranial nerves, the spinal nerves, and the sympathetic and parasympathetic nervous systems.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
peripheral nervous system  
The part of the nervous system in vertebrate animals that lies outside of the brain and spinal cord (central nervous system). It includes the nerves that extend to the limbs and many sense organs. Compare central nervous system.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

peripheral nervous system definition


The nerves outside of the central nervous system that make up part of the vertebrate nervous system.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Autonomic neuropathy involves damage to the nerves that run through a part of the peripheral nervous system.
Based on these observations, the researchers conclude that the octopus arm contains an independent peripheral nervous system.
It decreases blood pressure by blocking the action of epinephrine, a stress hormone, in the peripheral nervous system.
The ngf protein is present in the peripheral nervous system, but cells in the central system do not normally respond to it.
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