| DR | degeneration reaction; delivery room; deoxyribose; diabetic retinopathy; diagnostic radiology; digit... |
|---|---|
| DREF | dose rate effectiveness factor |
| DRF | Daily Rating Form; daily replacement factor; Deafness Research Foundation; dose reduction factor |
| DVH | Diploma in Veterinary Hygiene; Division for the Visually Handicapped; dose volume histogram |
| ED50 | median effective dose |