Varicose

(var'- ik - oz). Swollen, knotted, and tortuous. V. Aneurysm. See Aneurysm . V. Fibers, medullated axis-cylinders provided with Ranvier's nodes and with incisures; they are destitute of neurilemma, and show, after death, swellings due to the accumulation of fluid between the myelin and the axis-cylinder; they form the white matter of the spinal cord and brain.