| Defibrillator | defibrillator |
| Defibrillation | defibrillation |
| defibrillieren | defibrillate |
| Szintillator | scintillator |
| Deflektor | deflector |
| defizitär | deficient |
| Vibrator | vibrator |
| bebrillt | bespectacled speccy spectacled |
| Destillat | distillate |
| Destillation | distillation |
| Oszillator | oscillator |
| Rollator | walker walking frame rollator Zimmer frame |
| Demodulator | demodulator |
| Ventilator | fan ventilator blower tuuletin |
| Decorator | decorator pattern |
| Dekoratör | decorator |
| Reformator | reformer |
| Debitor | debtor |
| Definition | definition |
| Defizit | deficit deficiency |