| Acronym | Meaning |
| HT | Herzberg-Teller (wave Functions) |
| ICCIDD | International Council For Control Of Iodine Deficiency Disorders |
| CONCAWE | Conservation Of Clean Air And Water In Western Europe [European Community Organization] |
| HAT | Histone Acetyltransferase |
| NHEXAS | National Human Exposure Assessment Survey |
| CNWRA | Center For Nuclear Waste Regulatory Analyses |
| NEIS | National Environmental Information Service |
| MGVB | Modified Generalized Valence Bond |
| EAE | Experimental Autoimmune Encephalomyelitis |
| EPROM | Erasable Programmable Read Only Memory |