| Abbreviation | Definition |
|---|---|
| CD | Collision Detection |
| CD | Compact Disc |
| CDA | Cluster Development Agent |
| CDC | Class Device Context |
| CDC | Connected Device Configuration |
| CDC | Core Domain Controller |
| CDD | Common Data Dictionary |
| CDETS | Cisco Defect Enhancement Tracking System |
| CDI | Conditioned Diphase Interface |
| CDM | Collaborative Decision Making |
| CDMS | Collision Detection Management System/Service |
| CDN | Content Delivery Network |
| CDN | Content Delivery Network (Cisco) |
| CDN | Content Distribution Networks |
| CDO | Collaboration Data Objects |
| CDO | Communication Data Objects |
| CDP | Cisco Discovery Protocol |
| CDPD | Cellular Digital Packet Data |
| CDR | Committed Data Rate |
| CDS | Coordinated Data System |