| Abbreviation | Definition |
|---|---|
| LTU | Linear Threshold Unit |
| LTV | Local Thickness Variation |
| LTW | Linearized Traveling Wave |
| LTWT | Linearized Traveling Wave Tube |
| LTWTA | Linearized Traveling Wave Tube Amplifier |
| LU | Linear Up |
| LUCOLED | LUminescence COnversion Light Emitting Diode |
| LUCS | LHD underground control system |
| LUW | Logical Unit of Work |
| LV | Latent Variable |
| LV | Low Voltage |
| LVC | Local Vector Current |
| LVC | Low Voltage Control |
| LVD | Low Voltage Differential |
| LVDT | Linear Voltage Differential Transducer |
| LVE | Local Video Encoding |
| LVG | Longitudinal Vortex Generator |
| LVI | Low-Voltage Inverter |
| LVIT | Linear Variable Inductive Transducer |
| LVK | Low Voltage Kit |