| Acronym | Meaning |
| KSS | Kearns-Sayre Syndrome |
| SCBA | Self-Contained Breathing Apparatus |
| CHD | Coronary Heart Disease |
| ACPTQ | Approx. Coupled Pair (theory Cor. For Connected) Triple And Quadruple Excitations |
| PVFM | Poly(vinyl Formal) |
| AVCC | Average Carbonaceous Chondrites |
| EETU | Environmental Education And Training Unit |
| EPEN | Empirical Potential (based On Interaction Of) Electrons (and) Nuclei |
| IC-ACPF | Internally Contracted (multireference) Averaged Coupled Pair Functional |
| DLCA | Diffusion Limited Cluster Aggregation |