| Acronym | Meaning |
| IPPA | Independent Pair-potential Approximation |
| PAGE | Policy Analysis Of The Greenhouse Effect |
| TWTDS | Treatment Works Treating Domestic Sewage |
| CEIS | Center For Environmental Information And Statistics (EPA) |
| FMA | Failure-mode Analysis |
| SSSA | Soil Science Society Of America |
| BOTDR | Brillouin Optical Time Domain Reflectometry |
| LEMF | Laser-excited Molecular Fluorescence |
| APG | Alkyl Polyglycosidepar |
| GSAS | Generalized Structure And Anal. Software |