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.

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.

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.

gray matter

Parts of the central nervous system comprising cell bodies with axons and dendrites lacking a myelin sheath.
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

gray matter

noun
Informal. The seat of the faculty of intelligence and reason:
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.
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.
That is a large number difference when you consider the tremendous biologic forces that have to be at work for gray matter volume to decrease," lead author Dr.
In a multivariate logistic regression equation that explained 43% of the variance in executive function, an infarct location in the cortical gray matter and educational level were the only significant predictors.
These measurements were used to evaluate the volume of gray matter in the test participants both before and after the 6-month experiment.
Given this concern, we took a different approach and instead compared gray matter volume between adult bilinguals and monolinguals.
The authors reported that "exposure to poverty during early childhood is associated with smaller white mater, cortical gray matter, and hippocampal and amygdala volumes.
Gray matter myelitis leads to rapid onset of permanent paraplegia and urinary incontinence in as little as 4 hours.
We saw that areas of decreased gray matter were associated with a prolonged stop-signal time.
Therefore, the brain changes during adolescence mirror the initial wave of gray matter expansion in the womb and during the first 18 months of life, followed by a trimming-back period.
The catch: When the jugglers stopped tossing the balls for another three months, the, amount of gray matter returned to normal.
By the time of diagnosis, patients in the study had already lost 10 percent of their gray matter, making early detection a priority, he said.