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 One measurable biomarker that could indicate dementia is a change in cerebrospinal fluid, a substance present in the brain.5 Stage 2: Very Mild Cognitive Decline In the second stage of dementia, the person may begin to notice mild memory loss. Jess Sims, Health, 10 May 2024 By the age of 65, almost all members of this group had abnormal levels of a protein called amyloid—high amounts of which is tied to Alzheimer’s—in their cerebrospinal fluid, and 75 percent of them showed abnormal amyloid levels in brain scans. Will Sullivan, Smithsonian Magazine, 7 May 2024 Yet the best ways of diagnosing Alzheimer’s are either expensive (PET scans can cost $3,000) or invasive (cerebrospinal fluid can be obtained only through a lumbar puncture). TIME, 2 May 2024 Until then, the virus had been hard to pin down in the central nervous system, rarely showing up in cerebrospinal fluid—which is the case for polio virus as well. Beth Mole, Ars Technica, 5 Feb. 2024 The shifting of blood and cerebrospinal fluid toward the head is thought to be the underlying cause of vision problems experienced by some astronauts. Will Sullivan, Smithsonian Magazine, 19 Mar. 2024 Researchers will be able to list animal parts for sale, from cerebrospinal fluid to whole organs. Meghana Keshavan, STAT, 11 Mar. 2024 The 40-Hz therapy helps to bring more cerebrospinal fluid (CSF) into the brain. IEEE Spectrum, 28 Feb. 2024 The cerebrospinal fluid picks up all of the waste products in the spaces between neurons before being flushed out again through the same channels, leaving behind clean interstitial fluid. William A. Haseltine, Forbes, 29 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cerebrospinal fluid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1828, in the meaning defined above

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

Dictionary Entries Near cerebrospinal fluid

Cite this Entry

“Cerebrospinal fluid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cerebrospinal%20fluid. Accessed 19 May. 2024.

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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