| Acronym | Meaning |
| STEP | Soil Treatment Evaluation Program |
| DQ-MBPT | Double And Quadruple Excitation Diagrams In Many-body Perturbation Theory |
| KKR | Korringa-Kohn-Rostoker (in Band Structure Calcn.) |
| FSQ | Full-spectrum Quantitation |
| UNECE | United Nations Economic Commission For Europe |
| HFCLM | Hollow Fiber Contained Liquid Membrane |
| OSCAR | Oxidn. And Scavenging Characteristics Of April Rains |
| ARF | Absolute Response Factor |
| EA-EOMCC | Electron Attachment-equation Of Motion Coupled Cluster |
| ALR | Airlift-loop Reactor |