- a small vein.
- one of the branches of a vein in the wing of an insect.
Also veinule, veinulet.
Origin of venule
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- anatomy any of the small branches of a vein that receives oxygen-depleted blood from the capillaries and returns it to the heart via the venous system
- any of the branches of a vein in an insect's wing
C19: from Latin vēnula diminutive of vēna vein
Word Origin and History for venule
1850, from Latin venula, diminutive of vena "vein" (see vein).
Online Etymology Dictionary, © 2010 Douglas Harper
- A small vein, especially one joining capillaries to larger veins.capillary vein
- Any of the smaller veins that connect the capillaries to larger veins.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.