| Acronym | Meaning |
| IRZ | Immediate Response Zone |
| PHF | Paired Helical Filament |
| HNPCC | Hereditary Nonpolyposis Colorectal Carcinoma |
| APCVD | Atm.-pressure Chem. Vapor Deposition |
| IPNO | Independent-pair Natural Orbital |
| CEPOD | Catalyzed Electrochemical Plutonium Oxide Dissolution |
| CCEA | Conventional Combustion Environmental Assessment |
| IGLO | Individual Gauge For Localized Orbital |
| SIBS | Spark Induced Breakdown Spectroscopy |
| MLCPA | Maximum Likelihood Principal Component Analysis |