cerebrospinal fluid

noun Physiology.

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

noun

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

n.

1. The serumlike fluid that circulates through the ventricles of the brain, the cavity of the spinal cord, and the subarachnoid space, functioning as a shock absorber.spinal fluid

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.