- saphenous vein
- sa•phe′nous vein′[[t]səˈfi nəs[/t]] n.anat. either of two large veins near the surface of the leg from thigh to foot, one along the inner side and the other outer and posterior•Etymology: 1830–40; saphen(a)saphenous vein (ME < ML < Ar ṣāfin) + -ous
From formal English to slang. 2014.