grey matter


Also found in: Thesaurus, Medical, Idioms, Encyclopedia, Wikipedia.

grey matter

or

gray matter

n
1. (Anatomy) the greyish tissue of the brain and spinal cord, containing nerve cell bodies, dendrites, and bare (unmyelinated) axons. Technical name: substantia grisea Compare white matter
2. informal brains or intellect
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.grey matter - greyish nervous tissue containing cell bodies as well as fibersgrey 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
Translations

grey matter

n (fig) (fam) → materia grigia
References in classic literature ?
Their intelligence would have produced about the same result if nature had forgotten to furnish their brain-pan with a little grey matter.
There was about a teaspoonful of grey matter distributed among the entire squad, and the pupil Annette had been teaching that afternoon had come in at the tail-end of the division.
Professor Ian Deary, of Edinburgh University, said: "We have found a link between smoking and having thinner brain grey matter in some regions.
The results showed that people with high scores for affective empathy had greater grey matter density in the insula, a region found right in the 'middle' of the brain.
ISLAMABAD -- Child abuse can reduce the volume of grey matter in the brain that is responsible for processing information, a new study has found.
The researchers said that their findings revealed that grey matter volume of the right caudate of the striatum is smaller with higher pornography use, the Guardian reported.
Multi-generational exploitation of seafood by shore-based dwellers coincided with the rapid expansion of grey matter in the cerebral cortex, which characterizes the modern human brain.
Finley Lamb, from Wallasey, who celebrates his third birthday today has PVNH - periventricular nodular heterotopia - which is characterised by some of the brain's grey matter being in the wrong place.
The film Grey Matter reflects on the suffering of those who as children survived the Rwandan genocide.
IA new study reveals that Nine to 10-yearold children who are aerobically fit, tend to have significantly thinner grey matter than their "low-fit" peers, and this trimming of the outermost layer of the brain cells in the cerebrum is associated with better mathematics performance.
After analyses, it was discovered that those with overprotective parents had less grey matter in a particular area of the prefrontal cortex than those who had had healthy relationships.
Scientists analysed 57 cognitively healthy older adults and studied the relationships between baseline cerebrospinal fluid biomarkers, longitudinal memory performance and longitudinal measures of the medial temporal lobe grey matter using Magnetic Resonance Imaging (MRI).