cerebrospinal fluid

noun

: a colorless liquid that is comparable to serum, is secreted from the blood into the lateral ventricles of the brain, and serves chiefly to maintain uniform pressure within the brain and spinal cord

Examples of cerebrospinal fluid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The cerebrospinal fluid, which is clear and colorless, surrounds the brain and spinal cord and serves as a protective cushion while also providing nutrients, according to the Cleveland Clinic. Alexis Simmerman, Austin American Statesman, 2 July 2025 Alexis' tribute post comes a few weeks after the family announced that Joel was diagnosed with a brain condition called normal pressure hydrocephalus (NPH), which is a condition where excess cerebrospinal fluid builds up in the brain ventricles. Hannah Sacks, People.com, 16 June 2025 Last month, Joel announced the cancellation of his forthcoming performances due to his recent diagnosis of normal pressure hydrocephalus – a condition that occurs when cerebrospinal fluid builds up inside the skull, pressing on the brain. Tyler Jenke, Billboard, 5 June 2025 The condition is caused by excess cerebrospinal fluid accumulating in the brain’s ventricles, which affects memory, movement, thinking, and concentration, according to the Cleveland Clinic. Cheyenne Roundtree, Rolling Stone, 26 May 2025 See All Example Sentences for cerebrospinal fluid

Word History

First Known Use

1828, in the meaning defined above

Time Traveler
The first known use of cerebrospinal fluid was in 1828

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Cite this Entry

“Cerebrospinal fluid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cerebrospinal%20fluid. Accessed 20 Jul. 2025.

Kids Definition

cerebrospinal fluid

noun
ce·​re·​bro·​spi·​nal fluid
sə-ˌrē-brō-ˌspīn-ᵊl-
: a colorless fluid that occupies the cavities of the brain and spinal cord and the space between these and the membranes surrounding them

Medical Definition

cerebrospinal fluid

noun
: a liquid that is comparable to serum but contains less dissolved material, that is secreted from the blood into the lateral ventricles of the brain by the choroid plexus, circulates through the ventricles to the spaces between the meninges about the brain and spinal cord, and is resorbed into the blood through the subarachnoid sinuses, and that serves chiefly to maintain uniform pressure within the brain and spinal cord

called also spinal fluid

compare lymph

More from Merriam-Webster on cerebrospinal fluid

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