| Acronym | Definition |
|---|
| PCLS➣Pierce County Library System (est. 1946; Tacoma, WA) |
| PCLS➣Pension Commencement Lump Sum (UK pension legislation) |
| PCLS➣Post-Traumatic Checklist Scale (psychology) |
| PCLS➣Power Control Lever (helicopters) |
| PCLS➣Precision Cut Lung Slice (respiratory physiology) |
| PCLS➣Prototype Closed Loop System |
| PCLS➣Pass Christian Lighthouse Society (Pass Christian, Mississippi) |