GREY SUBSTANCE

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does grey substance mean? 

• GREY SUBSTANCE (noun)
  The noun GREY SUBSTANCE has 1 sense:

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

  Familiarity information: GREY SUBSTANCE used as a noun is very rare.

 Dictionary entry details 

• GREY SUBSTANCE (noun)

Sense 1

Meaning:

Greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons

Classified under:

Nouns denoting body parts

Synonyms:

gray matter; gray substance; grey matter; grey substance; substantia grisea

Hypernyms ("grey substance" is a kind of...):

nerve tissue; nervous tissue (tissue composed of neurons)

Meronyms (substance of "grey substance"):

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)

Holonyms ("grey substance" is a substance of...):

cerebral cortex; cerebral mantle; cortex; pallium (the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum)

 Context examples 

A thin membrane of grey substance extending form the corpus callosum to the tuber cinereum above the optic chiasm and forming the anterior portion of the inferior border of the third ventricle.

(Lamina Cinerea, NCI Thesaurus)