| Rank | Abbreviation | Meaning |
|---|
| ***** | PISCES | Personal Identification Secure Comparison and Evaluation System
| |
| *** | PISCES | Policy Innovation Systems for Clean Energy Security
| |
| *** | PISCES | Protocols for Integrated Ship Control and Evaluation of Situations
| |
| *** | PISCES | Power Plant Integrated Systems Chemical Emission Studies
| |
| ** | PISCES | Percutaneously inserted spinal cord electrical stimulation
| |
| ** | PISCES | Pipeline Intermodal System to Support Control, Expedition and Scheduling
| |
| ** | PISCES | Plessey Integrated Shipborne Combat Electronic Systems
| |
| ** | PISCES | Property Information Systems Common Exchange Standard
| |
| * | PISCES | Plant Instrumentation Surveillance Calibration and Evaluation System
| |
| * | PISCES | Pacific International Space Center for Exploration Systems
| |
| * | PISCES | Pollution Incident Simulation Control and Evaluation System
| |
| * | PISCES | Parallel Implementation of Scientific Computing Environments
| |
| * | PISCES | Pelagic Interaction Scheme for Carbon and Ecological Studies
| |
| * | PISCES | Psychological Intelligence Schemes for Expediting Surrender
| |
| * | PISCES | Partnership of Irish Sea Coast and Estuary Strategies
| |
| * | PISCES | Planets in Stellar Clusters Extensive Search
| |
| * | PISCES | Partnerships Involving the Scientific Community in Elementary Schools
| |
| * | PISCES | Plum Island Sound Comparative Ecosystem Study
| |
| * | PISCES | Passive In-Situ Chemical Extraction Sampler
| |
| * | PISCES | pancreatic islet cell-specific enhancer sequence
| |
| * | PISCES | Power Plant Integrated Systems: Chem. Emission Studies
| |
| * | PISCES | Passive In-Situ Concentration Extraction Sampler
| |
| * | PISCES | Passive In-Situ Concn. Extn. Sampler
| |