'Secretary of Defense' definitions:
Definition of 'Secretary of Defense'
From: WordNet
noun
The person who holds the secretaryship of the Defense Department; "the first Defense Secretary was James V. Forrestal who was appointed by Truman" [syn: Secretary of Defense, Defense Secretary]
noun
The position of the head of the Department of Defense; "the position of Defense Secretary was created in 1947" [syn: Secretary of Defense, Defense Secretary]