| Abbreviation | Definition |
|---|---|
| FCL | Fault Current Limiter |
| FCM | Facilities Cost Model |
| FCM | Faraday Cage Method |
| FCM | Frequency Coefficient Matched |
| FCM | Frequency Coefficient Matching |
| FCMN | Frontiers of Characterization and Metrology for Nanoelectronics |
| FCOB | Flip Chip On Board |
| FCS | Factory Control System |
| FCU | Fan Control Unit |
| FD | Fire detector |
| FD | Full-component Distortion |
| FDC | Fault Detection and Classification |
| FDD | Fault Detection Diagnosis |
| FDDI | Fault Detection Diagnosis Impact |
| FDE | Frequency Domain Experiment |
| FDIB | Frequency-Domain Intermodulation Balance |
| FDLF | Fast Decoupled Load Flow |
| FDM | Frequency Division Multiplexing |
| FDMI | Flat Display Mounting Interface |
| FDMS | Flash Desorption Mass Spectrometry |