| Acronym | Meaning |
| UNCED | United Nations Conference On Environment And Development |
| HFP | Hartree-Fock Perturbation |
| ECISDT | Size-extensive CI With Single And Double And Triple Excitations |
| OHER | Office Of Health And Environmental Research (US Dept. Of Energy) |
| ATG | Derivative Thermal Anal. |
| PCA | Procoagulant Activity |
| RSW | Resistance Spot Welding |
| LEFI | Local Electric Field Instrument |
| IPOD | International Phase Of Ocean Drilling |
| ACLSV | Apple Chlorotic Leaf Spot Virus |