sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Percutaneously inserted spinal cord electrical stimulation | ** |
| pancreatic islet cell-specific enhancer sequence | ** |
| Pacific International Space Center for Exploration Systems | ** |
| Partnerships Involving the Scientific Community in Elementary Schools | ** |
| Partnership of Irish Sea Coast Estuary Strategies | ** |
| Planets in Stellar Clusters Extensive Search | ** |
| Pipeline Intermodal System to Support Control, Expedition and Scheduling | ** |
| Parallel Implementation of Scientific Computing Environments | * |
| Plum Island Sound Comparative Ecosystem Study | * |
| Pollution Incident Simulation Control and Evaluation System | * |
| Protocols for Integrated Ship Control and Evaluation of Situations | * |