| Abbreviation | Definition |
|---|---|
| LPS | Linear Power Supply |
| LPSM | Levenson Phase Shift Mask |
| LPV | Low-Pressure Vent |
| LPW | Low Power Wattage |
| LQE | Lasers and Quantum Electronics |
| LQF | Linear Quadratic Fuzzy controller |
| LQR | Linear Quadratic Regulator |
| LRC | Leak Rate Check |
| LRP | Long Range Plan |
| LRS | Laser Raman Spectroscopy |
| LRU | Lowest Replaceable Unit |
| LS | Limit State |
| LSAPI | License Services Application Program Interface |
| LSB | Least Significant Bit |
| LSE | Latex Sphere Equivalent |
| LSEB | Low-Speed Electric Bike (LSEB) or a Class-1 ebike in the United States. Defined by the Consumer Prot |
| LSF | Low Smoke and Fume |
| LSF | Lower Sampling Frequency |
| LSHI | Large-Scale Hybrid Integration |
| LSI | Large Scale Integration |