| Acronym | Meaning |
| SPASE | South Pole Air Shower Expt. |
| BMC | Bone Mineral Content |
| SXES | Soft X-ray Emission Spectroscopy |
| CIRRIS | Cryogenic InfraRed Radiance Instrument For Shuttle |
| BTZ | Below The Treatment Zone |
| NSOM | Near-field Scanning Optical Microscopy |
| MEP | Multiple Extraction Procedure |
| EWMO | Energy Weighted Maximum Overlap Method |
| GIWA | Global International Waters Assessment |
| OCCSD | Open-shell Coupled-cluster (with) Single (and) Double (excitations) |