cerebrospinal fluid

American  

noun

Physiology.

1. the fluid in the ventricles of the brain, between the arachnoid and pia mater, and surrounding the spinal cord.

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cerebrospinal fluid British  

noun

1. CSF. the clear colourless fluid in the spaces inside and around the spinal cord and brain

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cerebrospinal fluid Scientific  

/ sĕr′ə-brō-spī′nəl,sə-rē′brō- /

1. The clear fluid that fills the cavities of the brain and covers the surfaces of the brain and spinal cord. It lubricates the tissues and cushions them from shock and injury.

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Etymology

Origin of cerebrospinal fluid

First recorded in 1895–1900

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Example Sentences

See Examples For:

cerebrospinal fluid

After six months, DHA levels in the cerebrospinal fluid had increased by an average of 17% among participants taking the supplements.

From Science Daily ● Oct. 22, 2026

NPH is a brain disorder in which excess cerebrospinal fluid accumulates in the brain’s ventricles, according to the Alzheimer’s Assn.

From Los Angeles Times ● Oct. 16, 2026

At the same time, cerebrospinal fluid and ventricular volumes increased, as did white matter hyperintensities, which appear as bright spots on MRI scans and can indicate tissue damage.

From Science Daily ● Oct. 1, 2026

The day after her diagnosis, Phoebe had her first surgery where a drain was inserted to relieve the pressure on her brain, caused by a build-up of cerebrospinal fluid.

From BBC ● Aug. 24, 2026

The cerebrospinal fluid revealed some abnormal changes which were suggestive of an organic brain disease.

From The Journal of Abnormal Psychology, Volume 10 by Various

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