noun
- Greyish nervous tissue containing cell bodies as well as fibers; forms the cerebral cortex consisting of unmyelinated neurons.
- synonyms: grey matter, gray matter, gray substance, substantia grisea
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). grey substance. Retrieved September 21, 2026, from http://smartdefine.org/grey_substance/definitions/1328159 |
| Chicago | WordNet. 2010. "grey substance" http://smartdefine.org/grey_substance/definitions/1328159 (accessed September 21, 2026). |
| Harvard | WordNet 2010, grey substance, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/grey_substance/definitions/1328159>. |
| MLA | WordNet. "grey substance" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/grey_substance/definitions/1328159> |