| Acronym | Meaning |
| SSA | Spherical Sector Analysis |
| BLISS | Balloon-borne Laser In Situ Sensor |
| EMA | Electron Microprobe Analysis |
| ECOP | Electron Correlation Polarization (potential) |
| NBO | Natural Bond Order |
| NIHL | Noise-Induced Hearing Loss |
| ORD | Office Of Research And Development (USEPA) |
| RABITS | Rolling-assisted Biaxially Textured Substrates |
| PPI | Prepulse Inhibition |
| RCISD | Restricted CI (with) Single (and) Double (excitations) |