Area Air Defense Commander 
Alaska Aerospace Development Corporati… 
All Applications Digital Computer 
Automated Area Distribution Center 
Avionics Architecture Design Change 
acid dopa decarboxylase 
Advanced Avionic Digital Computer 
Advanced Avionics Digital Computer 
Air Area Defense Commander 
Alberta Agriculture Development Corpor… 
Allison Advanced Development Company 
American Association of Dental Consult… 
American Association of Disability Com… 
amino acid decarboxylase 
Anti-aircraft Defence Command 
Anti-Aircraft Defense Commander 
Area Air Defense Coordinator 
Area Air-Defense Capability 
Area Air-Defense Commander 
Army Air Defense Command 
Army Air Defense Commander 
Arnold Air Development Center 
aromatic acid decarboxylase 
aromatic-L-amino-acid decarboxylase 
Australian Army Dental Corps 
Automatic Aeromagnetic Digital Compens…