| Acronym | Meaning |
| CMAQ | Community Multiscale Air Quality |
| CAAMP | Canadian Acid Aerosol Measurement Program |
| PERTCI | Perturbational Configuration Interaction |
| IDLH | Immediately Dangerous To Life Or Health |
| BSEF | Bromine Science And Environmental Forum |
| WSD | Water Saturation Deficit |
| FO-ECP | Frozen Orbital-effective Core Potential |
| RSK | Rajagopal-Singhal-Kimball (local-spin-d. Potential For Electronic Structure Calcns.) |
| HFBR | High Flux Beam Reactor |
| WRV | Water Retention Value [of Cellulose Pulps For Paper Manufacture] |