GNU Collaborative International Dictionary of English

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1.       
   ‖Vas (?), n.; pl. Vasa (#). [L., a vessel. See Vase.] (Anat.) A vessel; a duct.
   
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   ‖Vas deferens; pl. Vasa deferentia. [L. vas vessel + deferens carrying down.] (Anat.) The excretory duct of a testicle; a spermatic duct.
   
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