Abbreviations beginning with a

ADACAssociation pour la Diffusion des Arts et Connaissances (French: Association for the Dissemination of Knowledge and Arts; Belgium)
Miscellaneous

ADACAssociation pour le Développement de l'Action Culturelle (French: Cultural Action Development Association)
Miscellaneous

ADACAudiovector Discreet Active Concept
Miscellaneous » Unclassified

ADACAutomatic Differentiation of Assembler Code
Miscellaneous » Unclassified

ADACAboriginal Drug and Alcohol Council
Regional » Australian

ADAC2SAir Defence and Airspace Command, Control and Communication System
Governmental

ADAC2SAir Defense Artillery Command and Control System
Governmental » Military

ADACCAutomated Directory Assistance Call Completion
Academic & Science

ADACCAir Defense Airspace Coordination Cell (US Army)
Governmental

ADACCSAdvanced Data Achieving Cross Communication Systems
Community

ADACCSAir Defense Artillery Command & Control System
Governmental

ADACGArrival and Departure Airfield Control Group
Miscellaneous » Unclassified

ADACGarrival departure air control group
Miscellaneous » Unclassified

ADACGArrival/Departure Airfield Control Group
Miscellaneous » Unclassified

ADACHAbu Dhabi Authority for Culture and Heritage
Miscellaneous

ADACSAdvanced Digital and Analog Collection System
Academic & Science » Electronics

ADACSAstronomy Data and Compute Services
Academic & Science » Astronomy

ADACSAstronomy Data and Computing Services
Academic & Science » Astronomy

ADACSAdvanced Deburring And Chamfering System
Business » Products