82 DFS definitions

Distributed File System 
Dynamic Frequency Selection 
Distributed File Service 
Dynamic Flight Simulator 
Designated Fingerprint Service 
Direct Fleet Support 
disease free survival 
daily flow system 
Data Fusion Server 
Deactivation Furnace System 
Demodulation and Frame Synchronizer 
Departure From Specification 
Depth First Search 
depth-first search 
Design and Fabrication Services 
Design For Serviceability 
Detailed Functional Specification 
Deutscher Fernmelde Satellit 
Direction Finding Subsystem 
Direction Finding System 
Directional Finding System 
Dividends from Space 
Dansk Fysisk Selskab 
Data Field Security 
Dating For Sport 
Dead Fukuzawa Society 
Debian From Scratch 
decayed and filled tooth surfaces 
decoherence-free subspace 
Defensive Functioning Scale