gray substance


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Noun1.gray substance - greyish nervous tissue containing cell bodies as well as fibersgray substance - 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
References in periodicals archive ?
The viruses invade the spinal cord in only 1-5% of those infected and, in these cases, specifically attack the gray substance (gray matter).
While most of the pipe fragments had been cleaned by museum curators, black and gray substances were still adhered to the interior pipe walls in some circumstances.