white matter


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Related to white matter: gray matter

white matter

n.
Whitish nerve tissue, especially of the brain and spinal cord, consisting chiefly of myelinated nerve fibers.
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.

white matter

n
(Anatomy) the whitish tissue of the brain and spinal cord, consisting mainly of myelinated nerve fibres. Technical name: substantia alba Compare grey matter
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

white′ mat`ter



n.
nerve tissue, esp. of the brain and spinal cord, that primarily contains myelinated fibers and is nearly white in color. Compare gray matter (def. 1).
[1830–40]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

white matter

The whitish tissue of the brain and spinal cord in vertebrate animals, made up chiefly of nerve fibers covered in myelin sheaths. Compare gray matter.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

white matter

Myelin-sheathed nerve fibers.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.white matter - whitish nervous tissue of the CNS consisting of neurons and their myelin sheaths
nerve tissue, nervous tissue - tissue composed of neurons
fibrous astrocyte - star-shaped cells with long processes; found in the white matter of the brain and spinal cord
nerve pathway, nerve tract, pathway, tract - a bundle of myelinated nerve fibers following a path through the brain
central nervous system, CNS, systema nervosum centrale - the portion of the vertebrate nervous system consisting of the brain and spinal cord
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

white mat·ter

n. sustancia blanca, tejido nervioso formado en su mayor parte por fibras mielínicas y que constituye el elemento conductor del cerebro y de la médula espinal.
English-Spanish Medical Dictionary © Farlex 2012
References in periodicals archive ?
Brain white matter is made up of billions of thin nerve fibers, called axons, that connect the neurons with each other.
The NINDS researchers aim to conduct another study to see how controlling blood pressure may affect white matter lesions in critical regions of the brain, including the areas directly affected by age-related health conditions.
White matter lesions, which appear bright white on MRI scans, represent an increase in water content and reflect a variety of changes deep inside the brain.
The medication "lastingly affects white matter development of boys with ADHD, and this is probably because the brain is still developing, since we did not observe these changes in the men with ADHD with matured brains we studied," said study author Dr.
Alosco, Ph.D., from the Boston University Alzheimer's Disease Center and CTE Center, and colleagues examined the correlation of white matter rarefaction and cerebrovascular disease with dementia in 180 deceased men older than 40 years who had played football and were neuropathologically diagnosed with CTE.
The team then gathered data from the right frontal white matter and the cerebellum - a brain region that enables people to maintain balance and proper muscle coordination and that supports high-order cognitive functions.
Each volunteer underwent a brain scan using a magnetic resonance imaging (MRI) scanning technique called diffusion-tensor imaging to examine differences in white matter fibre tracts - which carry signals between different areas of the brain.
The company also announced that it is testing AST-OPC1 in a second preclinical model of subcortical and white matter ischemia an expert in preclinical models of cerebral ischemia and cell transplantation.
CT may show supratentorial or cerebellar white matter hypodensity, however CT is often normal.
The study focused on a type of brain tissue called white matter, which is comprised of millions of bundles of nerve fibers used by neurons to communicate across the brain.