| Acronym | Meaning |
| PRT | Platinum Resistance Thermometer |
| LL | Lincoln Laboratories |
| AIAIT | Army Intelligence And Threat Analysis Center |
| GTS | Global Telecommunication System |
| BBC | British Broadcasting Corporation |
| NOS | National Ocean Service |
| F | Forad |
| IRC | International Radiation Commission |
| BDL | Boundary Layer |
| ACO | Advance Change Order |