| Acronym | Meaning |
| RCR | Respiratory Control Ratio |
| BSSE | Basis-set Superposition Error |
| INSPEC | Information Service For Physics And Engineering Communities |
| ALAD | Delta-aminolevulinic Acid Dehydratase (lead Poisoning Indicator) |
| NPDOC | Non-purgeable Dissolved Organic Carbon |
| DSRNA | Double-stranded RNA |
| PSF | Point Spread Function |
| SCAR | Scientific Committee On Antarctic Research |
| ICOM | International Congress On Membranes |
| AFRP | Advanced Fuel Recycle Program |