| Acronym | Meaning |
| XPES | X-ray Photoelectron Spectroscopy |
| FNA | Fine-needle Aspiration |
| REOS | Remote Electro-Optical Sensor |
| ISI | Information Systems Inventory |
| UHC | Unburned Hydrocarbons |
| EM | Electron Microscopy |
| ACIS | Advanced CCD Imaging Spectrometer |
| EDB | Ethylene Dibromide |
| CAIS | Calcium-aluminum-rich Inclusions |
| CVAAS | Cold Vapor Atomic Absorption Spectrometry |