| Acronym | Meaning |
| IPA | Inverted Perturbation Approach (in Mol. Potential-energy Curves Calcn.) |
| LCF | Low-cycle Fatigue |
| PED | Pulsed Electrochemical Detection |
| BRC | Below Regulatory Concern |
| CC | Closed Cup (Flash Point Test Method) |
| BHMT | Betaine-homocysteine Methyltransferase |
| ICNZ | International Committee On Natural Zeolites |
| CPSSR | Coulomb-repulsion Perturbed Stationary State With Relativistic Effects |
| TEEL | Temporary Emergency Exposure Limit |
| GD-OES | Glow Discharge Optical Emission Spectroscopy |