| Acronym | Meaning |
| CASS | Cyclic Activated Sludge System |
| MP2(FU) | MP2(full) Inner-core Electrons Are Included In The Approxn. |
| JPDR | Japan Power Demonstration Reactor |
| AATB | American Association Of Tissue Banks |
| BSSRP | Basic Safety Standards For Radiation Protection |
| POCH | Polarized Ochkur |
| QCM | Quartz Crystal Microbalance |
| MGMT | O6-methylguanine-DNA Methyltransferase |
| HSDP | Hawaiian Scientific Drilling Project |
| HFJ | Hartree-Fock-Jucys (in Electron-correlation Corrections Calcn.) |