| Acronym | Meaning |
| BEST | Basic Extractive Sludge Treatment |
| BSC | Bundle Sheath Cellpar |
| LDEF | Long Duration Exposure Facility (for Spacecraft Material Testing) |
| HSSPME | Headspace Solid-phase Microextraction |
| KIE | Kinetic Isotope Effect |
| TH | Total Hardness [of Water] |
| ORBIT | On-line Retrieval Of Bibliographic Information Timesharing |
| RME | Reduced Matrix Equations |
| LDH | Lactate Dehydrogenase |
| NMOG | Non-Methane Organic Gases |