| Acronym | Meaning |
| BCCD | Betaine Calcium Chloride Dihydrate |
| CSA | Coupled-subshell Approxn. (in Calcns. On Inner-shell Ionization Collisions) |
| ARIC | Acid Rain Information Clearinghouse |
| MFAG | Medical First Aid Guide For Use In Accidents Involving Dangerous Goods |
| PIPN | Pseudo Interpenetrating Polymer Network |
| DHFR | Dihydrofolate Reductase |
| SALCCSD | Spin-adapted Linear Coupled-cluster (with) Single And Double Excitations) |
| DET | Direct Nonradiative Electronic Energy Transfer |
| TCC | Thermofor Catalytic Cracking |
| MIRAGE | Migration Of Radioisotopes In The Geosphere |