grey matter

English Thesaurus

1. greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons (noun.body)

hypernym	:	nerve tissue, nervous tissue,
definition	:	tissue composed of neurons (noun.body)

substance holonym	:	neuropil, neuropile,
definition	:	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 (noun.body)

substance meronym	:	cerebral cortex, cerebral mantle, cortex, pallium,
definition	:	the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum (noun.body)