| Acronym | Meaning |
| BDT | Brueckner (with) Double (and) Triple (substitutions) |
| GIXA | Glancing-incidence X-ray Analysis |
| ACCDPPA | Approx. Coupled Cluster With Double Excitations Polarization Propagator Approxn. |
| DIC | Differential Interference Contrast |
| HSWA | Hazardous And Solid Waste Amendments Of 1984 |
| BEJ | Best Engineering Judgement |
| GLWQB | Great Lakes Water Quality Board |
| ESG | Electronic Specialty Gases |
| FFSHC | Field Federal Safety And Health Councils |
| LAI | Leukocyte Adherence Inhibition |