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.
JAG, Air Force, No. 65 (10. July 1980) (opining that civilian contract guards, as agents of the installation commander, have the same law enforcement authority, including the use of force, as military security. police); Civilian Police/Guard Authority and Liability, Op.