| Acronym | Meaning |
| PT | Portuguese Language (ISO 639-1 Code) |
| IMHO | In My Humble Opinion |
| PK | Picokelvin |
| INAS | International Near-Earth Asteroid Survey |
| NIDDK | National Institute Of Diabetes And Digestive And Kidney Diseases |
| YM | Yottametre |
| NAAK | Mark I NAAK |
| DISA | U.S. Defense Information Systems Agency |
| NEX | Navy EXchange |
| VLPFC | VentroLateral PreFrontal Cortex |