| Abbreviation | Definition |
|---|---|
| DDD | drug design and discovery |
| DDM | demineralised dentin matrix |
| DDM | design decision matrix |
| DDM | differential diagnosis manager |
| DDM | Diploma in Dermatological Medicine |
| DDM | Doctor of Dental Medicine |
| DDPHRCS | Diploma in Dental Public Health, Royal College of Surgeons of England |
| DE | Dilation and Evacuation |
| DEB | debridement |
| DEB | Dental Estimates Board |
| DEB | dietary electrolyte imbalance |
| DEB | dystrophic epidermolysis bullosa |
| DEC | deciduous |
| DEC | decompose |
| DEC | dendritic epidermal cell |
| DEC | Development and Evaluation Committee, subsumed by NICE |
| DEC | diagnostic episode cluster |
| DEC | Disasters Emergencies Committee |
| DEC | Doppler echocardiography |
| DEC | duct epithelial cells |