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gray matter
gray mattern.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 matterParts of the central nervous system comprising cell bodies with axons and dendrites lacking a myelin sheath.Thesaurus| Noun | 1. |  gray matter - greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neuronsgray substance, grey matter, grey substance, substantia griseanerve tissue, nervous tissue - tissue composed of neuronsneuropil, 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 embeddedcerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum |
gray matternounInformal. The seat of the faculty of intelligence and reason:brain, head, mind.Translationsgray matter
gray matterIntelligence. In medicine, gray matter is tissue in the brain and spinal cord. Come on in—we could use your gray matter as we try to solve this problem.See also: gray, mattergray matterFig. intelligence; brains; power of thought. Use your gray matter and think what will happen if the committee resigns. Surely they'll come up with an acceptable solution if they use some gray matter.See also: gray, mattergray matterBrains, intellect, as in If you'd only use your gray matter, you'd see the answer in a minute. This expression refers to actual brain tissue that is gray in color. Agatha Christie's fictional detective, Hercule Poirot, constantly alludes to using the little gray cells for solving a crime. [Late 1800s] See also: gray, matterˈgrey matter (informal) intelligence or mental powers: Mark hasn’t got much grey matter, but he tries hard.See also: grey, mattergray matter
gray matter: see nervous systemnervous system,
network of specialized tissue that controls actions and reactions of the body and its adjustment to the environment. Virtually all members of the animal kingdom have at least a rudimentary nervous system.
..... Click the link for more information. .gray matter[′grā ‚mad·ər] (neuroscience) The part of the central nervous system composed of nerve cell bodies, their dendrites, and the proximal and terminal unmyelinated portions of axons. gray matter
matter [mat´er] 1. physical material having form and weight under ordinary conditions; called also substance.2. pus.gray matter areas of the nervous system where the nerve fibers are unmyelinated (not enveloped by a myelin sheath); it contains the bodies of the nerve cells. Tissue composed of myelinated fibers is called white matter. The cerebral cortex is entirely composed of gray matter and the cerebellum also contains some deep-seated masses of it. The spinal cord has a central core of gray matter surrounded by white matter; in cross section, its gray matter is shaped approximately like the letter H. Called also substantia grisea and gray substance.white matter areas of the nervous system composed mostly of myelinated nerve fibers (those having myelin sheaths) constituting the conducting portion of the brain and spinal cord. Tissue composed of unmyelinated fibers is called gray matter. Called also substantia alba and white substance.gray mat·'ter [TA] those regions of the brain and spinal cord that are made up primarily of the cell bodies and dendrites of nerve cells rather than myelinated axons. Synonym(s): gray substance [TA], substantia grisea [TA], substantia cinereagray mattern.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.Nonmyelinated cells and circuitry that comprise the ‘central processing unit’ of the CNS and spinal cord; the thinking part of the brain, which is composed of neuronal cell bodies, initial axon segments, dendritic processes, and arborizations, glia—neuroglial cells—capillaries and vascular support; gray matter is so named because it appears grayish; brain gray matter is peripheral; spinal cord gray matter is centralgray mat·ter (grā mat'ĕr) [TA] Those regions of the brain and spinal cord that are made up primarily of the cell bodies and dendrites of nerve cells rather than myelinated axons.
Synonym(s): substantia grisea [TA] , gray substance. LegalSeeMatterAcronymsSeegas maskgray matter
Synonyms for gray matternoun the seat of the faculty of intelligence and reasonSynonymsSynonyms for gray matternoun greyish nervous tissue containing cell bodies as well as fibersSynonyms- gray substance
- grey matter
- grey substance
- substantia grisea
Related Words- nerve tissue
- nervous tissue
- neuropil
- neuropile
- cerebral cortex
- cerebral mantle
- cortex
- pallium
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