| Acronym | Meaning |
| AOB | Ammonia Oxidizing Bacteria |
| NBRF | National Biomedical Research Foundation |
| CRL | Central Regional Laboratory |
| MCLT | Minority Carrier Lifetime |
| RACS | Raw Agricultural Commodities |
| DIDP | Diisodecyl Phthalate |
| NRW | Null Reflecting Water |
| CCGT | Closed Cycle Gas Turbine |
| ISAW | Interactive Self-avoiding Walk [modeling] |
| HSC | High Conversion Soaker (cracking) [petroleum Viscosity-breaking] |