| Acronym | Meaning |
| OCE-DF | One-center Expansion Dirac-Fock |
| ERDAS | Earth Resource Data Analysis System |
| PIRR | Polarized IR Reflection |
| EPACSAR | EPA Chemical Activities Status Report |
| PSU | Practical Salinity Units |
| DAIP | Diallyl Isophthalate |
| UTI | Urinary Tract Infection |
| MEMOSA | Microelectromechanical Optical Sensor Array |
| BWCCSD | Brillouin-Wigner Coupled-cluster (with) Single (and) Double (excitations) |
| DRCR | Dynamic Recrystallization Controlled Rolling |