| Acronym | Meaning |
| IRM | Information Resources Management |
| LDR | Linear Dynamic Range |
| HOMO | Highest Occupied Molecular Orbital |
| PDB | Peedee Belemnite |
| TTLC | Total Threshold Limit Concentration |
| CPVC | Critical Pigment Volume Concentration |
| KT | Koopmans Theorem |
| SRBC | Sheep Red Blood Cell |
| NLET | National Laboratory For Environmental Testing |
| HPCA | Hierarchical Principal Component Analysis |