| AVSD | atrioventricular septal defect |
|---|---|
| COVESDEM | costovertebral segmentation defect with mesomelia [syndrome] |
| CSD | carotid sinus denervation; cat scratch disease; combined system disease; conditionally streptomycin ... |
| CWD | cell wall defect; continuous-wave Doppler |
| DFD | defined formula diets; developmental field defect; diisopropyl phosphorofluoridate |