| Acronym | Meaning |
| SPE | Solid Polymer Electrolyte |
| SOTE | Standard Oxygen Transfer Efficiency (of Aeration Diffusers) |
| JERS | Japanese Earth Resources Satellite |
| SAIS | Science And Applications Information System |
| UNO-CAS | Unrestricted Natural Orbital-complete Active Space |
| AIROF | Anodic Iridium Oxide Film |
| EPEC | Enteropathogenic Escherichia Coli |
| ICAM | Integrated Climate Assessment Model |
| MR-CI-PS | Multireference-CI-perturbatively Selected |
| RI/FS | Remedial Investigation/feasibility Study (Superfund) |