[1] : The Collaborative International Dictionary of English v.0.48

venule \ven"ule\ ve^n"-ul, n. l. venula, dim. from vena
   vein.
   a small vein; a veinlet; specifically zool., one of the
   small branches of the veins of the wings in insects.
   1913 webster

[2] : WordNet (r) 2.0

venule
     n : a minute vein continuous with a capillary syn: venula, capillary
         vein
see also:
venula capillary vein 

Venule >> V Words
Venule, definition of term: Venule
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