| Acronym | Meaning |
| HNPCC | Hereditary Nonpolyposis Colorectal Carcinoma |
| HEDTA | Hydroxyethylethylenediaminetriacetic Acid |
| IASH | International Association On The Stability And Handling Of Liquid Fuels |
| MCVD | Modified Chemical Vapor Deposition |
| FEMP | Fernald Environmental Management Project |
| ROHF | Restricted Open-shell Hartree-Fock |
| PIGS | Pesticides In Groundwater Strategy |
| FCM | Finite-cluster Model (for Calcns. On Electromigration) |
| OMZ | Oxygen Min. Zone |
| LSM | Land Surface Model |