| Acronym | Meaning |
| STO NG | (n = A Number) Slater Type Orbitals Obtained By Using N Gaussian Functions |
| LED | Light-emitting Diode |
| AEFCA | All-electron Frozen-core Approximation |
| MSL | Mean Sea Level |
| NIGMS | National Institute Of General Medical Sciences (NIH) |
| SONN | Self-organizing Neural Network |
| LAER | Lowest Achievable Emission Rate |
| VISTTA | Visibility Impairment From Sulfur Transformation And Transport In The Atmosphere |
| BEAR | Business And Environmentalists In An Alliance For Recycling |
| DTCI | 3,3'-diethylthiacarbocyanine Iodide |