| Acronym | Definition |
|---|
| PSNS➣Pretreatment Standards for New Sources (US EPA) |
| PSNS➣Puget Sound Naval Shipyard |
| PSNS➣Parasympathetic Nervous System |
| PSNS➣Pravá Slovenská Národná Strana (Real Slovak National Party, Slovakia) |
| PSNS➣Parti Syrien National Social (French: Syrian National Socialist Party) |
| PSNS➣Perthshire Society of Natural Science (UK) |
| PSNS➣Pulsed Spallation Neutron Source (physics) |