| Acronym | Meaning |
| DIGGER | Discrete Isolation From Gradient-governed Elimination Of Resonances |
| HMO | Hueckel Molecular Orbital |
| BSCO | Break Specific Carbon Monoxide |
| NETA | National Environmental Training Association |
| HDD | Halogenated Dibenzodioxin(s) |
| JAK | Janus Kinase |
| UAM-IV | Urban Airshed Model Version IV |
| ALAPO | Association Of Local Air Pollution Control Officers |
| LUC | Large Unit Cell Semiempirical Approxn. (for Band Structure) |
| ARE | Activated Reactive Evaporation |