| Acronym | Meaning |
| BCM | Bond Charge Model (in Force Constants Calcn.) |
| AQSA | Anthraquinone-2-sulfonic Acid |
| VIF | Valency-point Interaction Formula (in Graph Theory With At. And Mol. Orbitals) |
| MSA | Methanesulfonic Acid (air Pollutant) |
| VRLA | Valve-regulated Lead-acid (batteries) |
| CI | Compression-ignition (engine) |
| SPCE | Screen-printed Carbon Electrode |
| ASTDR | Agency For Toxic Substances And Disease Registry |
| HASL | Hypothetical Active Site Lattice |
| HSP | Heat Shock Protein |