| C/D | cigarettes per day; cup to disc ratio |
|---|---|
| DDD | AV universal [pacemaker]; defined daily dose; degenerative disc disease; dehydroxydinaphthyl disulfi... |
| DDS | damaged disc syndrome; dendrodendritic synaptosome; dental distress syndrome; depressed DNA synthesi... |
| DISC | Diagnostic Interview Schedule for Children |
| disc | discontinue |