gray matter


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gray matter

n.
1. Brownish-gray nerve tissue, especially of the brain and spinal cord, composed of nerve cell bodies and their dendrites and some supportive tissue.
2. Informal Brains; intellect.
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.

gray′ mat`ter


n.
1. a reddish gray nerve tissue of the brain and spinal cord, consisting chiefly of nerve cell bodies, with few nerve fibers. Compare white matter.
2. Informal. brains or intellect.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

gray matter

The brownish-gray tissue of the brain and spinal cord in vertebrate animals, made up chiefly of the cell bodies of neurons. Compare white 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.

gray matter

Parts of the central nervous system comprising cell bodies with axons and dendrites lacking a myelin sheath.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gray matter - greyish nervous tissue containing cell bodies as well as fibersgray matter - greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons
nerve tissue, nervous tissue - tissue composed of neurons
neuropil, neuropile - the complex network of unmyelinated axones, dendrites, and glial branches that form the bulk of the central nervous system's grey matter and in which nerve cell bodies are embedded
cerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

gray matter

noun
Informal. The seat of the faculty of intelligence and reason:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations

gray mat·ter

n. materia o sustancia gris, tejido nervioso muy vascularizado de color gris pardo compuesto de células nerviosas y fibras nerviosas amielínicas.
English-Spanish Medical Dictionary © Farlex 2012
References in classic literature ?
"How," demanded Sir Oracle, "can a mother reasonably expect her child to learn correct speech, when she continually accustoms its impressionable gray matter to such absurd expressions and distortions of our noble tongue as thoughtless mothers inflict every day on the helpless creatures committed to their care?
He's a man, every inch of him and every atom of his gray matter."
Reductions in gray matter were significantly higher among Holocaust survivors who were younger than 12 in 1945, compared to those who were older.
Mindfullness practice leads to increases in regional brain gray matter density.
While boys' brains were overall larger in terms of volume, girls had proportionately larger volumes of gray matter and boys had proportionately larger volumes of white matter.
Progressive loss of cortical gray matter in schizophrenia: a meta-analysis and meta-regression of longitudinal MRI studies.
The study jumps off of previous findings that indicate being multilingual could boost gray matter and ward off cognitive decline in otherwise healthy people.
It turned out that in the old people who played Super Mario, the amount of gray matter in the hippocampus increased and memory improved.
In the study, researchers describe how Ryk and its chaperone contribute to the development of the brain's cortex, which is the gray matter responsible for consciousness.
Participants whose serum lutein levels were higher performed better in the crystallized intelligence tests and had thicker gray matter in the brain's parahippocampal cortex, indicating healthier brain aging.