| Acronym | Meaning |
| PPB | Parts Per Billion |
| PPP | Point-to-Point Protocol |
| PRC | People's Republic Of China |
| AY | Sandia National Laboratory |
| PICF | Principal Investigator Computing Facility |
| MIGS | MASnet Internet Gateway Server (or System) |
| AICE | American Institute Of Chemical Engineers |
| DIR | Director's Office |
| REREX | Remote Read-out Experiment |
| NEXUS | Next Upper Air Sounder (system) |