| Abbreviation | Definition |
|---|---|
| CLIC | Closed-Loop Intensity Control |
| CLIC | Continuum and Line Interferometer Calibration |
| CLIW | Customized Long Instruction Word |
| CLMFP | Color Laser Multi-Function Printer |
| CLP | Windows Clipboard image format |
| CLR | Crystal Light Relay |
| CLSD | Color Large Screen Display |
| CM | Common Mode |
| CM | Configuration Management |
| CM | Contrast Medium |
| CMA | Common Mode Analysis |
| CMA | Cylindrical Mirror Analyzer |
| CMC | Cassette Module Controller |
| CMC | Common Mode Choke |
| CMEC | Central Missouri Electric Cooperative |
| CMEC | Coles Moultrie Electric Cooperative |
| CMEP | Composite Mechanical Electrical and Plumbing |
| CMFA | Common Mode Failure Analysis |
| CMFB | Common Mode Feed Back |
| CMI | California Microwave Incorporated |