| Acronym | Meaning |
| IES | Internal Eliminated Sequence |
| OLMO | Orthonormal Localized Mol. Orbital |
| FNMRI | Flow Nuclear Magnetic Resonance Imaging |
| ECCF | Equilibrium Charge-charge Flux (model In Ir Spectra Calcns.) |
| IAES | Ion Excited Auger Electron Spectroscopy |
| WSD | Water Saturation Deficit |
| NESDIS | National Environmental Satellite |
| POM | Particulate Organic Matter |
| FEA | Finite-element Analysis |
| EPCIA | Evolving Principal Component Innovation Analysis |