Noun. 1. vas deferens-a duct that carries spermatozoa from the epididymis to the ejaculatory duct. ductus deferens.
Judge Advocate General of the Navy. The Judge Advocate General of the Navy (JAG) is the highest-ranking uniformed lawyer in the United States Department of the Navy. The Judge Advocate General is the principal advisor to the Secretary of the Navy and the Chief of Naval Operations on legal matters pertaining to the Navy.
Commander Harmon Rabb, Jr. and Lieutenant Colonel Sarah MacKenzie are JAG lawyers, who together investigate and litigate crimes committed by Navy and Marine personnel. Occasionally, they engage in adventurous activities in order to solve their cases.