| Acronym | Meaning |
| AAPCO | Association For American Pesticide Control Officials |
| PCM | Phase-change Material (in Heat Storage) |
| EFA | Envelope Function (i.e. |
| EIS | Electrochem. Impedance Spectroscopy |
| PHF | Perturbative Hartree-Fock |
| CINC | Cytokine-induced Neutrophil Chemoattractant |
| RAG | Risk Assessment Guideline |
| ALCHEMI | Atomic Location By Channeling Enhanced Microanalysis |
| AGMA | American Gear Manufacturers Association |
| EFRTS | External-floating-roof Tanks |