| Acronym | Meaning |
| STP | Slater-transform-preuss (wave Functions) |
| EAC | Ehrlich Ascites Carcinoma |
| OCD | Overlapping Charge Density (model In Electronic Structure) |
| OS | Overlapping Spheres (method) |
| LAT | Linker For Activation Of T Cells |
| WGSATM | Working Group On The Statistical Aspects Of Trend Monitoring (ICES) |
| ODP | Optical Deformation Potential |
| QCCA | Quasiclassical Close-coupling Approximation |
| VAFTAD | Volcanic Ash Forecast Transport And Dispersion |
| HMIS | Hazardous Material Identification System |