Wordnet 3.0
NOUN (1)
1. 
 an intelligence agency of the United States in the Department of Defense; 
 is responsible for providing intelligence in support of military planning and operations and weapons acquisition; 
[syn: Defense Intelligence Agency, DIA]
WordNet (r) 3.0 (2006):
Defense Intelligence Agency
    n 1: an intelligence agency of the United States in the
         Department of Defense; is responsible for providing
         intelligence in support of military planning and operations
         and weapons acquisition [syn: Defense Intelligence
         Agency, DIA]