sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| premature right atrial stimulation | ** |
| programmed right atrial stimulation | ** |
| prorenin-renin-angiotensin system | ** |
| Personal Responsibility Attitude Assessment System | ** |
| panel reactive antibody levels | ** |
| Proline Rich Akt Substrate | ** |
| Portsmouth Reptile and Amphibian Society | ** |
| Patients Rights Advocacy Services | ** |
| Pete Richardson Auction Sales | ** |
| Pacific Rim Arts Society | ** |
| Peace River Audubon Society | ** |
| Portsmouth Reptile Amphibian Society | ** |
| Plastics and Rubber Advisory Service | ** |
| Private Rented Accreditation Scheme | ** |
| Private Rental Assistance Scheme | ** |
| Planning Reporting Accountability Structure | ** |
| Plastics Rubber Advisory Service | ** |
| Planning and Resource Allocation Section | ** |
| Performance Recognition and Award System | ** |
| Preferential Runway Advisory System | ** |
| Prorenin Renin Angiotensin System | ** |
| Parallel Alignment of Sequences | * |
| Pension Relief at Source | * |
| Punk Rock Appreciation Society | * |
| Palouse Region Aquarium Society | * |
| Patient Rights Advocacy Services | * |
| Police Research Award Scheme | * |
| Predictive Readiness Assessment System | * |
| Particle Reactor Analysis Services | * |
| Public Resource Allocation System | * |