| Acronym | Meaning |
| INCI | International Nomenclature Cosmetic Ingredient |
| ASDWA | Association Of State Drinking Water Administrators |
| SI | State Interaction Method |
| LPMA | Laser-probe Microanalysis |
| PKI | Public Key Infrastructure |
| DNAA | Delayed Neutron Activation Analysis |
| PEM | Parametric Equations Of Motion |
| MPW | Multiple Plane Wave (in Electronic-property For Metals) |
| J(Z)CCS | J(z)-conserving Coupled States Method (for Rotationally Inelastic Atom-molecule Collisions |
| AEC | Atomic Energy Commission |