a combining form with the meaning “vein,” used in the formation of compound words: venostasis.
Also veni-; especially before a vowel, ven-.

Origin of veno-

< Latin vēn(a) vein + -o- Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for veno-



Vein; venous:venipuncture.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.