Noun : a rich vein of coal. ,a vein of pessimism. ,to write in a poetic vein.    From Dictionary.com. 

I was just running around with my veinless legs and my taut neck, totally oblivious.    From Wordnik.com.  [Kate Fridkis: Coming to Terms with Aging] Reference

The backs of his large hands on the wheel still look young, and remarkably veinless.    From Wordnik.com.  [Environment news, comment and analysis from the Guardian | guardian.co.uk] Reference

At last he had cut off what he wanted, and gazed with singular tenderness at the piece of red, veinless meat.    From Wordnik.com.  [Complete Project Gutenberg Georg Ebers Works] Reference

Page view page image: long, and one 1/8 of an inch wide, it is obtuse, absolutely entire, veinless fleshy and gibbose; has no perceptable taste or smell, and no anamal appears to eat it by way of designating when I mention it hereafter I shall call it the fleshey leafed thorn. 1.    From Wordnik.com.  [Original journals of the Lewis and Clark Expedition, 1804-1806] Reference

"veinless, poreless and flawless" body parts as her main criteria.    From Wordnik.com.  [NY Post: News] Reference

Against the veinless, senseless sarsen stone.    From Wordnik.com.  [Georgian Poetry 1918-19] Reference

3/4 or an inch long, and one 1/8 of an inch wide, it is obtuse, absolutely entire, veinless fleshy and gibbose; has no perceptable taste or smell, and no anamal appears to eat it. by way of designating when I mention it hereafter I shall call it the fleshey leafed thorn.    From Wordnik.com.  [The Journals of Lewis and Clark, 1804-1806] Reference