The civilian head of the United States Department of Defense and a member of the cabinet, appointed by the president and confirmed by the Senate. The secretary of defense works with civilian and military advisers to formulate American military policies and make foreign policy recommendations to the president.
|secretary of defense|
|1.||the person who holds the secretaryship of the Defense Department; "the first Defense Secretary was James V. Forrestal who was appointed by Truman"|
|2.||the position of the head of the Department of Defense; "the position of Defense Secretary was created in 1947"|