| Abbreviation | Definition |
|---|---|
| DCM | Digital Carrier Module |
| DCM | Discontinuous-Conduction Mode |
| DCM | Display and Control Module |
| DCO | Digitally Controlled Oscillator |
| DCOF | Double Clad Optical Fiber |
| DCOF-SM | Double Clad Optical Fiber - Single Mode |
| DCP | Direct Current Plasma |
| DCP | Direct Current Power |
| DCPB | Data Collection Proto Board |
| DCPD | Direct Current Potential Drop |
| DCPS | Direct Current Power System |
| DCR | Direct Current Resistance |
| DCS | DiChloroSilane |
| DCS | Digital Cellular System |
| DCS | Digitally Controlled Squelch |
| DCS | Distributed Control System |
| DCT | Digital Component Technology |
| DCV | Demand-Controlled Ventilation systems |
| DCVD | Dielectric Chemical Vapor Deposition |
| DCVG | Direct Current Voltage Gradient |