| Acronym | Meaning |
| BTB | Bromothymol Blue |
| FIPS | Federal Information Processing Standard |
| NERVA | Nuclear Engine For Rocket Vehicle Application |
| RB | Renormalized Band (method In Electronic-structure Calcns.) |
| NVFEL | National Vehicle And Fuel Emissions Laboratory |
| DCA | Detrended Correspondence Ordination Analysis |
| VCC-IOS | Vibrational Close-coupling-(rotational) Infinite-order Sudden (for Inelastic Mol. Collisions Calcns.) |
| LEES | Local Excess-electron State (a Mol.-crystal Wave Function) |
| RSV | Reduced Sp. Viscosity |
| CCSD-GF | CCSD-green Function |