| Acronym | Meaning |
| PPA | Parahippocampal Place Area - PolyPhthalAmide |
| PCR | Polymerase Chain Reaction |
| NIO | Nicaraguayan Cordoba Oro (ISO 4217 Currency Code) |
| AFRRI | (U.S.) Armed Forces Radiobiology Research Institute |
| HSSI | High-Speed Serial Interface |
| MAVS | Mobile Artillery Vehicle System |
| EWR | Newark Liberty International Airport (IATA Airport Code) |
| AGO | Angola (ISO 3166 Trigram) |
| NLD | Netherlands (ISO 3166 Trigram) |
| WVU | West Virginia University |