| Abbreviation | Definition |
|---|---|
| LSI | last subject in |
| LSMS | Local Security Management Specialist |
| LSO | last subject out |
| LSP | left sacrum posterior |
| LSP | local service partnership |
| LSP | local service provider |
| LSV | lateral sacral vein |
| LSV | left subclavian vein |
| LSV | Lone Star virus |
| LTA | large T antigen |
| LTA | laser thermal ablation |
| LTA | laser thermal angioplasty |
| LTA | laser trabecular ablation |
| LTA | lead tetraacetate |
| LTA | leisure time activity |
| LTA | life-threatening asthma |
| LTA | lifetime allowance |
| LTA | lipoteichoic acid |
| LTA | long-term adaptation |
| LTA | Long-Term Agreement |