| Acronym | Meaning |
| NPA | Natural Population Analysis |
| SGR | Steam Gas Recycle (process For Shale Oil Recovery) |
| NDI | Nondestructive Inspection |
| EGRET | Energetic Gamma Ray Experiment Telescope |
| EDA | Ethylene Diamine |
| HFCLM | Hollow Fiber Contained Liquid Membrane |
| MARS | Multivariate Adaptive Regression Splines |
| ODCPA | Off-diagonal (disorder) Coherent-potential Approxn. |
| SON | Supraoptic Nucleus |
| ILSS | Interlaminar Shear Strength |