The meaning of the Acronym ADT is...

ADT is

• Active Duty for Training
• Automatic Digital Tester
• Automatic Double Tracking

More Meanings For ADT:

• HP NewWave Cardfile Application Datafile
• Dictionary (Lingvo)
• AdTech Fax document
• Abstract Data Type
• Ant Detection Technology
• Advanced Development Tool
• Aminet Download Tool
• Array Display Tool
• Applied Diagnostic Techniques
• Advanced Digital Trim
• Approved Departure Time
• Agri-Business Development Team
• A Daft Tosser
• America's Dumbest Technicians
• Average Daily Trips

ADT is also in:

• Aircraft
• Electronics
• Farming
• File Extensions
• Funnies
• General
• Security
• Software
• Unit Measures