| Acronym | Meaning |
 | LEO | Low Earth Orbit |
| BMDO | (U.S.) Ballistic Missile Defense Organization (bim-do) |
| HD | Henry Draper (star Catalogue) - Hull-Down (armoured Vehicle Target |
| NA | Nanoampere |
| ADF | Australian Defence Force - African Development Foundation |
| IVL | Inter-Visibility Line |
| FSH | Follicle Stimulating Hormone |
| FIU | Florida International University |
| FOC | Full Operational Capability |
| BBC | Big Black Cock |
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