noun
: an officer (as in the United States Navy) who has general charge of the care and maintenance of the battery, ordnance material, and ammunition of a warship, superintends gun drills, and directs the gunnery training of the crew
noun
: an officer (as in the United States Navy) who has general charge of the care and maintenance of the battery, ordnance material, and ammunition of a warship, superintends gun drills, and directs the gunnery training of the crew
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012