| Acronym | Meaning |
| SAFIRE | Spectroscopy Of The Atmosphere Using Far Infrared Emission |
| ROS | Restricted (or Roothaan) Open-shell (Hamiltonian) |
| NCID | National Center For Infectious Diseases |
| MOE | Modulus Of Elasticity |
| DIMP | Diisopropyl Methylphosphonate |
| EPA | Environment Potential Approach (in Electronic-structure Calcn.) |
| CTOD | Crack Tip Opening Displacement |
| RAILE | Retro-Assisted Imaging Laser Experiment |
| CBR | Cosmic Background Radiation |
| ELG | Emission-line Galaxy |