either of two large veins near the surface of the foot, leg, and thigh, one on the inner side and the other on the outer and posterior sides.
Origin of saphenous vein
First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Either of two main superficial veins of the leg, one larger than the other, that begin at the foot. A portion of the larger saphenous vein is often used in surgery for coronary artery bypass graft.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.