2. Noun. (context: research) (initialism of Accelerated Degradation Testing Accelerated Degradation Testing) ¹
3. Noun. (military) (initialism of Accumulated Deployed Time Accumulated Deployed Time) ¹
4. Noun. (computing) (initialism of Acknowledged Data Transfer Acknowledged Data Transfer) ¹
5. Noun. (military weaponry) (initialism of Active Denial Technology Active Denial Technology) ¹
6. Noun. (military) (initialism of Active Duty for Training Active Duty for Training) ¹
7. Noun. (military) (initialism of Active Duty Tour Active Duty Tour) ¹
8. Noun. (healthcare) (initialism of Admissions, Discharge, Transfer Admissions, Discharge, Transfer) ¹
9. Noun. (abbreviation of adult Adult) ¹
10. Noun. (context: audio recording) (initialism of Automatic Double Tracking Automatic Double Tracking) ¹
11. Noun. (computing) (initialism of Advanced DRAM Technology Advanced DRAM Technology) ¹
12. Noun. (context: hiking) (initialism of American Discovery Trail American Discovery Trail) ¹
13. Noun. (context: astronomy education) (initialism of Astronomy Diagnostic Test Astronomy Diagnostic Test) ¹
14. Noun. (context: traffic information) (initialism of Average Daily Traffic Average Daily Traffic) ¹
¹ Source: wiktionary.com