Wordnet 3.0
NOUN (1)
1. 
 the executive agency that advises the President on military questions; 
 composed of the chiefs of the United States Army and the United States Navy and the United States Air Force and the commandant of the United States Marine Corps; 
[syn: Joint Chiefs of Staff, Joint Chiefs]
WordNet (r) 3.0 (2006):
Joint Chiefs of Staff
    n 1: the executive agency that advises the President on military
         questions; composed of the chiefs of the United States Army
         and the United States Navy and the United States Air Force
         and the commandant of the United States Marine Corps [syn:
         Joint Chiefs of Staff, Joint Chiefs]