| Abbreviation | Definition |
|---|---|
| TL | Top Layer |
| TL | Total Length |
| TLA | Temporal Logic of Actions |
| TLA | Two Level Analysis |
| TLAP | Think Like A Physicist |
| TLC | Theoretical Length of Cut |
| TLC | Thin-layer chromatography |
| TLC | Transferring Linear Cubic |
| TLE | Two Line Element |
| TLI | Tilted Laser Image |
| TLIF | Thin Layer Isoperichoric Focusing |
| TLK | Two-Lesion Kinetic model |
| TLP | Thread Level Parallelism |
| TLS | Two-Level tunneling System |
| TM | Theorem of Maxwell |
| TM | Translation Modified |
| TM | Transverse Magnetic |
| TMA | Thermal Mechanical Analysis |
| TMBP | Thermal Mechanical Back Plate |
| TMC | Time Minimal Control |