| Acronym | Meaning |
| APTI | Air Pollution Training Institute |
| LERAM | Littoral Ecosystem Risk Assessment Model |
| DEPT | Distortionless Enhancement By Polarization Transfer |
| WSM | Watershed Model |
| BST | Barium Strontium Titanate |
| ORCA | Optical Resonance Cavity Analyzer |
| PCDW | Projectile Continuum Distorted Wave (in Atom Collision Calcns.) |
| DGS | DiGeorge Syndrome |
| SVM | State Variable Model |
| RTD | Residence Time Distribution |