| Acronym | Meaning |
| ACRS | Advisory Committee On Reactor Safeguards |
| IGCI | Industrial Gas Cleaning Institute |
| H-CI | Hylleraas-configuration Interaction |
| ISAM | Ionically Self-assembled Monolayer |
| RVCM | Renormalized Virtual-crystal Method (for Electronic Structure) |
| ARAMS | Advanced Regional Atmospheric Modeling System |
| OCPSF | Organic Chemical, Plastics, And Synthetic Fiber Industry |
| ISSJ | International Scientific Station Of The Jungfraujoch (atm. Observatory |
| FOPIM | First Order Perturbation Iteration Method |
| LAS | Laser Absorption Spectroscopy |