| Acronym | Meaning |
| PCOP | Positron Correlation Polarization (potential) |
| TOPSE | Tropospheric Ozone Production About The Spring Equinox |
| BABE | Bio-Augmentation Batch Enhanced |
| CISS | Constant-initial-state Spectroscopy |
| EVOH | Ethylene Vinyl Alcohol |
| LRFDCD | Lifetime-resolved Fluorescence-detected Circular Dichroism |
| RSAC | Remote Sensing Applications Center (US Forest Service) |
| MOSHO | Maximum Overlap Symmetry Hybrid Orbital |
| SVC | Saturated Vapor Concentration (air Sampling) |
| QSM | Quantum-statistical Model |