| Abbreviation | Definition |
|---|---|
| DAV | Data AVailable |
| DAVL | Data AVailable-Low |
| DAWN | Doppler Aerosol WINd (LIDAR q.v. system) |
| DB | Data Bus |
| DB | DeadBand |
| dB | Decibels |
| DB | Design Baseline |
| DB | Digital Bilevel acquisition |
| DB | Direct Broadcast |
| DB | Distribution Box |
| DB | Dry Bulb |
| DBC | Data Bus Control |
| DBC | Data Bus Coupler |
| dBCI | Decibels with respect to a Circularly-polarized Isotropic radiator |
| DBE | Data Bus Element |
| DBFN | Data Base File Number |
| DBFN | Digital BeamForming Network |
| DBG | Data Bus Group |
| DBGMP | Data Bus Generation and Maintenance Package |
| DBI | Decibels referenced to Isotropic gain |