| Acronym | Meaning |
 | BDNF | Brain-Derived Neurotrophic Factor |
| AFI | French Territory Of The Afars And Issas (ISO 3166 Trigram; Obsolete Since 1977) - Agencia Federal De Investigaci›nes (M?xico) |
| IA | Iowa (postal Symbol) |
| LHC | Large Hadron Collider |
| RS | Russia (FIPS 10-4 Country Code) |
| IED | Improvised Explosive Device |
| ABB | ASEA Brown Boveri (Swiss-Swedish Multinational Company) |
| TPS | The Pennington School |
| DVD | Digital Versatile Disk (was Digital Video Disk) |
| SS | Swati Language (ISO 639-1 Code) |
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