What does venule mean?
A venule is a small vein, especially a vessel that receives blood from capillaries and carries it toward a larger vein. The word is used mainly in anatomy, medicine, physiology, and biomedical research, where it helps describe the smaller components of the venous system. Venules are finer than the larger veins visible near the surface of the body, and their walls are correspondingly thinner. In medical descriptions, venules may be discussed in connection with dilation, inflammation, or abnormalities visible in tissues such as the skin and retina. The term comes from Latin venula, literally “little vein,” and reflects the same root found in vein and venous. Although “small vein” can serve as a plain-language explanation, venule is the more precise anatomical word when referring to the vessels that connect capillary beds with larger veins.
nounA venule is a small vein, especially one that receives blood from capillaries and carries it toward a larger vein.
- A small vein, especially one that receives blood from a capillary network and conveys it toward a larger vein.
"The biopsy revealed dilated venules in the superficial layers of the skin."
"The biopsy showed dilated venules in the superficial dermis."
"The contrast dye filled the venules before spreading into the larger veins."
The standard plural form, used for multiple small veins.
"Several venules were visible beneath the microscope."
Venule literally means “little vein”: a tiny vessel linking capillaries to larger veins and helping keep the body's circulation moving.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does venule come from?
Venule derives from Latin venula, the diminutive of vena, meaning “vein.” Latin diminutives commonly express smallness or reduction, so venula literally means “little vein.” Its English anatomical use follows this ordinary Latin formation and refers to a vein smaller than the major vessels of the venous system.
Related word forms
How venule is actually used
The term is formal and chiefly used in anatomy, medicine, physiology, and biomedical research. It is not normally used in everyday conversation.
Easily confused with venule
A vein is a blood vessel returning blood toward the heart, whereas a venule is specifically a small vein, often one receiving blood from capillaries.