| Acronym | Meaning |
| FCVA | Filtered Cathodic Vacuum Arc |
| SSSA | Soil Science Society Of America |
| NLLAP | National Lead Laboratory Accreditation Program |
| MGMS | Molecular Graphics And Modelling Society |
| NDA | New Drug Application |
| CASAC | Clean Air Scientific Advisory Committee (US EPA) |
| ANC | Acid Neutralizing Capacity |
| BSHC | Break Specific Unburned Hydrocarbons |
| NPL | Nonparametric Linkage |
| CNDO/SW | Complete Neglect Of Differential Overlap / Sichel-Whitehead |