| Abbreviation | Definition |
|---|---|
| CWP | Cooling Water Pump |
| CWP | Cousineau Wood Products |
| CWS | Canada-Wide Standard |
| CYL | Cylinder |
| D | Dangerous |
| D | Defective |
| D | Development |
| D | Disposable |
| D | Dull |
| D13 | Volvo D13 |
| D2 | Diesel Oil, 0.02% Sulfur |
| D5Q | De 5 Quality |
| DACB | Deotized Animal Cage Board |
| DAF | Detect-A-Fire |
| DAFS | Dissolved Air Flotation System |
| DAIP | Division of Anti Infective Products |
| DASY | Dosimetric Assessment System |
| DB | Dream Belleza |
| DBB | Denis Browne Brace |
| DBB | Double Bilateral Brace |