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gray matter

noun

Simple Definition of gray matter

  • : the tissue that makes up the brain

Full Definition of gray matter

  1. 1 :  neural tissue especially of the brain and spinal cord that contains nerve-cell bodies as well as nerve fibers and has a brownish-gray color

  2. 2 :  brains, intellect


Medical Dictionary

gray matter

noun

Medical Definition of gray matter

  1. :  neural tissue especially of the brain and spinal cord that contains cell bodies as well as nerve fibers, has a brownish gray color, and forms most of the cortex and nuclei of the brain, the columns of the spinal cord, and the bodies of ganglia—called also gray substance




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