| Acronym | Meaning |
| RADB | Real America Database - Resource Assessment Database - Reunion Address DataBase - Rice Allelopathy Data Base - Routing Arbiter Data Base |
| AN | Attonewton |
| SHSN | Snow Showers (METAR Code) |
| RI | Rhode Island (postal Symbol) |
| DLPMC | DorsoLateral PreMotor Cortex |
| CADCAM | Computer-Aided Design/Computer-Aided Manufacturing |
| EST | Eastern Standard Time (UTC-5 Hours) -Estonia (ISO 3166 Trigram) |
| PK | Pakistan (ISO 3166 And FIPS 10-4 Country Code Digram) - Petakelvin -Player Kill[er] - Probability Of Kill -PolyKetone -Pulemet Kalashnikova (Russian ?? ??????? ??????????? |
| TLD | Thermoluminescent Dosimeter - Top-Level Domain |
| NO | Nobelium |