[noor-on, nyoor-]
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.

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

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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

"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
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American Heritage
Medical Dictionary

neuron neu·ron (nur'ŏn', nyur'-) or neu·rone (-ōn')
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-)
Relating to a neuron.

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
neuron   (nr'ŏn')  Pronunciation Key 

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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.
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Example sentences for neuronal
This represents a huge, unfrequent, reduction in neuronal connections.
This neuronal brain alteration persists for months after administration ceases.
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