| vas collaterale | A branch of an artery running parallel with the parent trunk, a vessel that runs in parallel with another vessel, nerve, or other long structure. Synonym: vas collaterale. (05 Mar 2000) |
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| vas deferens | The excretory duct of the testis that conveys sperm. (27 Sep 1997) |
| vas deferens calcifications | <radiology> Diabetes (most common), degenerative change (aging), TB (12 Dec 1998) |
| vas prominens ductus cochlearis | A blood vessel in the substance of the spiral prominence of the cochler duct. (05 Mar 2000) |
| vas spirale | A blood vessel, larger than its fellows, running in the tympanic layer of the basilar membrane just beneath the tunnel of Corti. (05 Mar 2000) |
| Haller's vas aberrans | A narrow, coiled tubule frequently connected to the first part of the ductus deferens or to the lower part of the ductus epididymitis. Synonym: ductulus aberrans inferior, Haller's vas aberrans. (05 Mar 2000) |