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Cerebrospinal fluid

(Science: neurology) a clear, colourless fluid that contains small quantities of glucose and protein. Cerebrospinal fluid fills the ventricles of the brain and the central canal of the spinal cord.

analysis of the cerebrospinal fluid can be accomplished using lumbar puncture. The presence of white blood cells or bacteria within the cerebrospinal fluid can indicate a bacterial infection (meningitis).

Acronym: csf