neuron

[noor-on, nyoor-]
noun
Cell Biology. a specialized, impulse-conducting cell that is the functional unit of the nervous system, consisting of the cell body and its processes, the axon and dendrites.
Also, especially British, neurone [noor-ohn, nyoor-] .
Also called nerve cell.
Compare synapse.


Origin:
1880–85; < Greek neûron sinew, cord, nerve

neuronal [noor-uh-nl, nyoor-, noo-rohn-l, nyoo-] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To neuronal
Collins
World English Dictionary
neurone or neuron (ˈnjʊərəʊn, ˈnjʊərɒn)
 
n
Also called: nerve cell a specialized cell that conducts nerve impulses: consists of a cell body, axon, and dendrites
 
neuron or neuron
 
n
 
neu'ronal or neuron
 
adj
 
neuronic or neuron
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

neuron
"a nerve cell with appendages," 1891, from Ger. Neuron, from Gk. neuron (see neuro-). Used earlier (1884) for "the spinal cord and brain."
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

neuron neu·ron (nur'ŏn', nyur'-) or neu·rone (-ōn')
n.
Any of the impulse-conducting cells that constitute the brain, spinal column, and nerves, consisting of a nucleated cell body with one or more dendrites and a single axon. Also called nerve cell, neurocyte.

neuronal neu·ro·nal (nur'ə-nəl, nyur'-, nu-rō'nəl, nyu-)
adj.
Relating to a neuron.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
neuron   (nr'ŏn')  Pronunciation Key 


(click for larger image in new window)

A cell of the nervous system. Neurons typically consist of a cell body, which contains a nucleus and receives incoming nerve impulses, and an axon, which carries impulses away from the cell body. Also called nerve cell.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences for neuronal
This represents a huge, unfrequent, reduction in neuronal connections.
This neuronal brain alteration persists for months after administration ceases.
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature