| Acronym | Meaning |
| ICM | Inner Cell Mass |
| NTO | Natural Transition Orbital Method (for Excited States) |
| SAED | Selected Area Electron Diffraction |
| HPGE | High Purity Germanium |
| PSM | Pflanzenschutzmittel; Pesticides |
| COC | Cleveland Open Cup (Flash Point Test Method) |
| EEPROM | Elec. Erasable-programmable Read-only Memory |
| SLO | Strictly Localized Orbital |
| PED | Plasma Emission Detector |
| SCM | Spherical Cellular Model |