|1.||[ noun ] (politics) the person who holds the secretaryship of the Defense Department|
"the first Defense Secretary was James V. Forrestal who was appointed by Truman"
|2.||[ noun ] (military,work,government) the position of the head of the Department of Defense|
"the position of Defense Secretary was created in 1947"
|Related terms:||secretaryship United_States_Cabinet|