PLSI
| Acronym | Definition |
|---|---|
| PLSI | Psoriasis Life Stress Inventory |
| PLSI | Probabilistic Latent Semantic Indexing (statistics) |
| PLSI | Paragon Learning Style Inventory |
| PLSI | Pre-Law Summer Institute |
| PLSI | Preservation League of Staten Island (est. 1977; Staten Island, NY) |
| PLSI | Pragmatic Language Skills Inventory |