| Acronym | Meaning |
| NCEA | National Center For Environmental Assessment |
| RSS | Residual Sum Of Squares |
| FDA | Food And Drug Administration |
| RID | Recrystn. Induced Diffusion |
| NSE | Neuron-specific Enolase |
| TMA | Transcription-mediated Amplification |
| RCR | Respiratory Control Ratio |
| ECAMSI | Electron Configuration Analysis For Many-system Interactions |
| WSI | Water Sediment Interface |
| HMBC | Heteronuclear Multiple-bond Correlation |