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Noun: grey substance
Usage: Brit, Cdn (US: gray substance)
  1. Greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons
    - grey matter [Brit, Cdn], gray matter [US], gray substance [US], substantia grisea

Derived forms: grey substances

Type of: nerve tissue, nervous tissue

Part of: cerebral cortex, cerebral mantle, cortex, pallium

Encyclopedia: Grey substance