| Acronym | Meaning |
 | MX | Mail Exchange -Mexico (FIPS 10-4 Country Code; ISO 3166 Digram) -Missile EXperimental |
| NCI | U.S. National Cancer Institute |
| GULAG | Glavnoye Upravleniye Ispravitelno-trudovykh LAGerei I Kolonii (Russian ??????? ?????????? ????????????? ???????? ??????? ? ??????? |
| NISAC | U.S. National Infrastructure Simulation And Analysis Center |
| PGENI | Pharmaco-Genetics For Every Nation Initiative |
| OSA | Order Of St. Augustine |
| G10 | Group Of 10 (G7 + Belgium |
| CRC | Central RTI Component - Chemical Rubber Company - Christian Reformed Church - Control And Reporting Centre -Costa Rican Col›n (ISO 4217 Currency Code) -Cyclic Redundancy Check |
| VA | Vatican City-State (ISO 3166 Digram) -Veterans Affairs (U.S. Department Of) -Virginia (postal Symbol) |
| ARS | Agricultural Research Service -Argentine Peso (ISO 4217 Currency Code) |
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