| Acronym | Meaning |
| MUCS | Minimum-uncertainty Coherent States (wave Functions) |
| CLU-IN | Clean-Up Information Bulletin Board System (formerly OSWER-BBS) |
| CAD | Collisionally Activated Dissociation |
| GRVB | Generalized Resonating Valence Bond |
| LSW | Localized Spherical Wave (in Electronic Structure Calcns.) |
| CHIEF | Clearinghouse For Inventories And Emission Factors |
| IAETL | International Association Of Environmental Testing Laboratories |
| GASH | Guanidine Aluminum Sulfate Hexahydrate |
| PNA | Peptide Nucleic Acid |
| MPK | Methyl Propyl Ketone |