sort by Rank | Alpha
| Possible Meanings | Rank |
| Pulmonary regurgitant area index | ** |
| N-(5'-phosphoribosyl) anthranilate isomerase | ** |
| Property Registration Authority Is | ** |
| Paul Robeson Award Initiative | ** |
| Probabilistic Reasoning in Artificial Intelligence | ** |
| N-(5'-phosphoribosyl) anthranilate isomerase reaction | ** |
| N-5'-phosphoribosylanthranilate isomerase | ** |
| Promoting Reel African Images | ** |
| Physical Risk Assessment Inventory | ** |
| Peer Review Analysis Inc | ** |
| Pacific Regional Audit Initiative | ** |
| Pacific Research Associates Inc | * |
| Paul Robeson Award Is | * |
| Project Research Applicable in Industry | * |
| Portfolio Recovery Associates Inc | * |