Definition of "endovenous"

“What usually happens is someone comes in for endovenous treatments for larger veins and a lot of times they’ll say, ‘While you’re at it, take a look at these smaller veins and let me know if you can do anything about them,’ ” Dr. Zelickson said.

2009 September 10, Camille Sweeney, “Removing the Web of Spider Veins”, in New York Times‎