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a sac or cavity containing fluid especially lymph or cerebrospinal fluid

a sac or cavity containing fluid especially lymph or cerebrospinal fluid

[Latin] Closed space containing fluid, as any of the subarachnoid spaces.

This term has been applied to various parts of the body, which serve as reservoirs for different fluids. The fourth ventricle of the brain has been so called.-Arantius.

[Latin] A cistern; a space filled with fluid; particularly, a space filled with cerebro-spinal fluid beneath the arachnoid (C. of C. subarachnoidealis) or between its layers (C. arachnoidealis).

A vessel, a receptacle, a cistern; an old term for the fourth ventricle of the brain.