| Acronym | Meaning |
| ITS | Internal Transcribed Spacer |
| RNN | Recurrent Neural Network |
| NLPLS | Nonlinear Partial Least Squares |
| HH-GLF | Hyperspherical Harmonic-generalized Laguerre Function |
| COARE | Coupled Ocean-Atmosphere Response Experiment |
| PGNAA | Prompt Gamma Neutron Activation Analysis |
| MBER | Molecular Beam Electron Resonance |
| MESQUAC-MO | Mixed Electrostatic Quantum Chemical Calculation-MO |
| ORS | Odds Ratios |
| RPDWR | Revised Primary Drinking Water Regulations |