| Acronym | Definition |
|---|
| PSII➣Plasma Source Ion Implantation |
| PSII➣Posterior Segment Intraocular Inflammation (cell disorder) |
| PSII➣Preventive Services Improvement Initiative (National Assembly on School-Based Health Care) |
| PSII➣Process Safety Incident Investigation (industrial safety) |
| PSII➣Physical Sciences Information Infrastructure (US Department of Energy) |