| Acronym | Meaning |
| GGWD | Generalized Gaussian Wave-packet |
| ASPG | Antisymmetrized Product Of Separated Geminals Approxn. |
| BHT | Butylated Hydroxytoluene |
| WAP | Whey Acidic Protein |
| HCMOS | High-density Complementary Metal-oxide Semiconductor |
| QAPP | Quality Assurance Project Plan |
| A.I. | Active Ingredient |
| ULEV | Ultra Low Emission Vehicle |
| API | American Petroleum Institute |
| GIF | Graphic Image Format |