| Abbreviation | Definition |
|---|---|
| LCL | Lower Confidence Limit |
| LCM | Line Concentrator Module |
| LCOE | Levelized Cost Of Energy |
| LCOM | Logic Control Output Module |
| LCOS | Liquid Crystal On Silicon |
| LCR | Inductance/Capacitance Ratio |
| LCS | Lighting Control System |
| LCS | Limiter, Compressor, and Saturator |
| LCVCR | Line Code Violation Count Register |
| LD | Laser Diode |
| LD | Low Delay |
| LD | Luminance-Defined |
| LDA | Local Density Approximation |
| LDA | Logic Design Automation |
| LDC | Load Dispatch Centre |
| LDD | Lightly Doped Drain |
| LDDM | Laser Doppler Displacement Meter |
| LDL | Lower Detection Limit |
| LDMOS | Laterally Diffused Metal Oxide Semiconductor |
| LDMOS | Laterally-Diffused Metal-Oxide Semiconductor |