| Acronym | Definition |
|---|
| DDFS➣Double Dynamic Focus System |
| DDFS➣Direct Digital Frequency Synthesizer (aka Digital Direct-Frequency Synthesizer) |
| DDFS➣Digital Document Filing System (software) |
| DDFS➣Distant Disease-Free Survival |
| DDFS➣Digital Direct-Frequency Synthesizer (aka Direct Digital Frequency Synthesizer) |