veinous

vein +‎ -ous

veinous (comparative more veinous, superlative most veinous)

1. Having veins.
   • Charles Dickens

     The excellent old gentleman's nails are long and leaden, and his hands lean and veinous.

2. From, or related to veins.
   • 2004, Henry Heymering, American Farriers' Journal, Volume 30

     Farriers should have an awareness of blood flow and veinous arterial and capillary blood flow in the foot and how this flow changes under load and when it's unloaded.

   I do a veinous draw once a month at the doctor's lab.

• envious, niveous