| Acronym | Meaning |
| CIOS | Classical Infinite Order Sudden (in Atom-mol. Reaction Calcns.) |
| PSID | Photon Stimulated Ion Desorption |
| ITO | Indium Tin Oxide (gas Sensor |
| LOPT | Large-order Perturbation Theory |
| RSE | Relativistic Symmetric Eikonal |
| PPDS | Physical Property Data Service |
| CRIB | Computerized Resources Information Bank |
| LOGS | Laser Optogalvanic Spectrometry |
| CAI | Computer Aided Instruction |
| IOA | International Ozone Association |