Relating to both the brain and the spinal cord, especially regarding the cerebrospinal fluid that surrounds them.
From Latin cerebrum (brain) + Greek rhachis (spine, backbone). A rare variant of cerebrospinal, cerebrorachidian was used interchangeably in 19th-century medical terminology.
The cerebrorachidian fluid surrounds your brain and spinal cord like biological bubble wrap, constantly recycling to flush out toxins—your brain uses this 'dishwashing cycle' every few hours.
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