| Acronym | Meaning |
| AIADC(3) | Ab Initio Third-order Algebraic Diagrammatic Construction Green Function Method |
| CIC | Configuration Interaction (in The) Continuum (theory In Calcns. Of Atomic Resonances) |
| IGS | Intergenic Spacer |
| CNC | Condensation Nucleus Counter |
| HRCT | High-Resolution Computed Tomography |
| MAPK | Mitogen-activated Protein Kinase |
| GGS | Global Geospace Science |
| BOM | Bond Orbital Model |
| CPT | Cluster Perturbation Theory |
| GSR | Gunshot Residue |