noun
greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons
• Syn: ↑grey matter, ↑gray matter, ↑grey substance, ↑gray substance
• Hypernyms: ↑nervous tissue, ↑nerve tissue
• Substance Holonyms: ↑cerebral cortex, ↑cerebral mantle, ↑pallium, ↑cortex
Useful english dictionary. 2012.