| Acronym | Meaning |
| NDLM | Nondiagonal Lagrange Multiplier |
| LNRS | Laser Nonresonant Shadowgraphy |
| IRRI | International Rice Research Institute |
| AQUIRE | Aquatic Information Retrieval |
| EPIC | Erosion-productivity Impact Calculator |
| SOD | Sediment Oxygen Demand |
| ILS | Intracavity Laser Spectroscopy |
| DEMA | Diesel Engine Manufacturers Association |
| NSTA | National Science Teachers Association |
| PRIME | Plume Rise Model Enhancements |