| Acronym | Meaning |
| IRAS | Infrared Astronomy Satellite |
| SPE | Solid Phase Extraction |
| IRRS | IR Reflection Spectroscopy |
| CCP | Capacitively Coupled Plasma |
| KVP | Kohn Variational Principle |
| DHB | 2,4-dihydroxybenzoic Acid |
| VBSCF | Valence Bond Self-consistent Field |
| TRI-US | Toxic Release Inventory-User Support |
| BI | Bond Increment (method In Calcns. On Large Molecules) |
| HAC | Hydrogen-assisted Cracking |