| Acronym | Meaning |
| RDH | Rapid Displacement Heating (pulping - For Paper) |
| AQCC | Averaged Quadratic Coupled-cluster |
| DF | Decontamination Factor |
| FCCP | Trifluoromethoxy Carbonylcyanide Phenylhydrazone |
| POA | Peierls-Onsager Approxn. (in Electronic Structure Calcns.) |
| POF | Polymer Optical Fiber |
| ICM | Injection Compression Molding |
| CSO | Combined Sewage Overflow(s) |
| SSMS | Spark Source Mass Spectrometry |
| ZDDP | Zinc Dialkyl Dithiophosphate |