There are multiple definitions:

1. afterdepolarization(English)

   • DAD, EAD, AHP
   • Electrophysiology

2. adenosine 5'-diphosphate(English)

   • Abbreviation may be used in Am. Soc. Physiol. journals without definition.
   • ATP, ATPase
   • Physiology, Biochemistry

3. automatic data processing(English)

   • Medical informatics

4. anchored disc phenomenon(English)

   • ML, MP, MRI
   • Dentistry, Surgery
   • https://doi.org…jom.2003.10.005

5. air displacement plethysmography(English)

   • BF, BMC, BMD, BMI, DXA, FFM, HW, LBM, QA
   • Adiposity, Diet
   • https://doi.org…ocd.2025.101595

6. angio-derived physiology(English)

   • an emerging, wire-free technique that uses AI and computational fluid dynamics on standard angiographic images to assess coronary artery disease (CAD) severity. It eliminates the need for pressure wires and hyperemic drugs, reducing procedural time, radiation exposure, and costs while providing highly accurate functional assessments
   • CAD, CFD, FFR, PCI, QFR, vFFR
   • Coronary circulation, Ratio-based metric, Medical imaging, Physiology, Artificial intelligence
   • https://doi.org…390/jcm14228219