Definition, Meaning & Synonyms

grey matter

noun

/ɡreɪ ˈmætər/

Definition

The darker tissue of the brain and spinal cord, consisting mainly of nerve cell bodies, and is involved in processing information in the nervous system.

Examples

The new research focused on the amount of grey matter in the brain.
As we age, the amount of grey matter may decrease, affecting memory and cognitive functions.
Grey matter plays a vital role in muscle control and sensory perception.

Meaning

Grey matter refers to the areas of the brain and spinal cord that are rich in neuronal cell bodies and are crucial for processing sensory information and muscle control.