| Acronym | Meaning |
| XMA | X-ray Microanalysis |
| SPFS | Surface Plasmon Fluorescence Spectroscopy |
| AEES | Auger Electron Emission Spectroscopy |
| MICS | Magnetospheric Ion Compn. Spectrometer |
| GOES | Geostationary Operational Environmental Satellite |
| REOS | Remote Electro-Optical Sensor |
| BDST | Bed-depth Service Time |
| SARM | Synthetic Analytical Reference Matrix (US EPA) |
| DCFCI | Density-constrained Full-configuration-interaction |
| RPMI | Roswell Park Memorial Institute |