| Acronym | Meaning |
| MPI | Modified Perturbation Iteration |
| IUPPA | The International Union Of Air Pollution Prevention Associations |
| POCP | Photochem. Ozone Creation Potential |
| TBW | Total Body Water |
| NTEF | Near Total External Fluorescence |
| SNP | Single-nucleotide Polymorphism |
| ALCHEMI | Atomic Location By Channeling Enhanced Microanalysis |
| EPA | Extended Pair Approxn. (in Elec. Cond. Calcn.) |
| TOXLIT | Toxicology Literature From Special Sources (NLM) |
| HTPB | Hydroxy-terminated Polybutadiene |