| Acronym | Meaning |
| AUT | Austria (ISO 3166 Trigram) |
| LU | Lutetium |
| WL | Wehrmacht Luftwaffe (German WW2 Air Force Vehicle Licence Plate Code) |
| ICZN | International Code Of Zoological Nomenclature - International Commission On Zoological Nomenclature |
| FI | Finnish Language (ISO 639-1 Code) |
| HO | Holmium |
| CIMMYT | Centro Internacional De Mejoramiento De Maz Y Trigo (Spanish |
| CERN | Centre Europ?en Pour La Recherche Nucl?aire (French |
| AR | Argentina (FIPS 10-4 Country Code; ISO 3166 Digram) - Arkansas (postal Symbol) - Armour |
| NSABB | National Science Advisory Board For Biosecurity |