Meaning of the word "white matter" in English

What does "white matter" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

white matter

US /ˈwaɪt ˌmæt.ər/
UK /ˈwaɪt ˌmæt.ər/
"white matter" picture

Noun

1.

the paler tissue of the brain and spinal cord, consisting mainly of nerve fibers with their myelin sheaths.

Example:
Damage to the white matter can impair cognitive function.
The MRI scan revealed abnormalities in the patient's white matter.
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