from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A small vein, especially one joining capillaries to larger veins.

from The Century Dictionary.

  • noun A small vein; a veinlet; in entomology, same as nervule.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A small vein; a veinlet; specifically (Zoöl.), one of the small branches of the veins of the wings in insects.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun anatomy A small vein, especially one that connects capillaries to a larger vein.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a minute vein continuous with a capillary


from The American Heritage® Dictionary of the English Language, 4th Edition

[Latin vēnula, diminutive of vēna, vein.]


  • Just as the human body has different types of blood vessels arteries, veins, arterioles, venule, capillaries, an effective, usable transit system must be multimodal.

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  • Connective tissue between venule and capillary filled with migrated leucocytes; e, e, Connective tissue with less infiltration; f,

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  • Fig. 19-9 sensory nerve ending living epidermal cells dead cell layer sebaceous gland capillaries arteriole venule hair follicle muscle (pulls hair upright) sweat gland hair shaft epidermis dermis subdermal connective and adipose tissue capillary bed

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  • A large solid recurrent HB 11 years after the primary total removal in a 66-year-old non-VHL patient. von Hippel-Lindau disease • HBs of the retina • Figure 8 • A typical mature HB with a draining arteriole and venule in a 40-year-old non-VHL patient: ophthalmoscopic view (a), and FA (b) before treatment; ophthalmoscopic view (c) and FA (d) at two months after cryocoagulation, showing narrowing of the feeders.

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  • From this moment the 6 cm part of jejunum, which was going to be studied was identified and care was taken that the vasculature of the studied jejunum consisted of 1 central mesenteric arteriole and venule.

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  • Pockets of dead tissue, perhaps caused by venule occlusions, are often seen in autopsies of people who had dementia late in life, says Nguyen, and now researchers have a way to study this phenomenon.

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  • These findings suggest that small occlusions in the venule system may play a role in cognitive dysfunction.

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  • E, F: In the hippocampus, on day 8 post-injection, three cuffed vessels harboring a venule-like morphology (white stars in E) are surrounded by CFSE

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  • One of the cuffed vessels presents a venule-like morphology (arrow).

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