VAS

Source: 567

‖Vas (?), n.; pl. Vasa (#). [[L., a vessel. See Vase.]] (Anat.) A vessel; a duct. ‖Vas deferens; pl. Vasa deferentia. [[L. vas vessel + deferens carrying down.]] (Anat.) The excretory duct of a testicle; a spermatic duct.