| Abbreviation | Definition |
|---|---|
| D | Doublet |
| DAC | Diamond Anvil high pressure Cell |
| DACU | Data Acquisition and Control Unit |
| DAD | Dispersive Anomalous Diffraction |
| DAFS | Diffraction Anomalous Fine Structure |
| DALR | Dry Adiabatic Lapse Rate |
| DAMP | Division Of Atomic And Molecular Physics |
| DAP | Donor Acceptor Pair |
| DARD | Dynamic Axial Rotational Device |
| DAV | Damping Amplitude of Vibration |
| DAV | Dumping Amplitude of Vibration |
| DB | Decibel |
| DBB | Double-Block and Bleed |
| DBC | Delicate Balance Collective |
| DBG | Disease Biophysics Group |
| DBP | Division of Biological Physics |
| DBP | Division of Biomedical Physics |
| DBT | Dry Bulb Temperature |
| DC | Dynamic Conversion |
| DCIC | Drift-Corrected Image Composition |