| Acronym | Meaning |
| RMSECV | Root-mean-square Error Of Cross-validation |
| NPCVD | Normal Pressure Chemical Vapor Deposition |
| ARE | Androgen-responsive Element |
| REX | Relativistically Parametrized Extended Hueckel |
| NCP | Net Community Productivity |
| AOTF | Acousto-optic Tunable Filter |
| AOCS | American Oil Chemists' Society |
| RECP | Relativistic Effective-core Potential |
| SS | Suspended Solids |
| PPR | Projection Pursuit Regression |