| Acronym | Meaning |
| RPCR | Restricted Principal Component Regression |
| FQHE | Fractional Quantum Hall Effect |
| RP/M | Reinforced Plastics/mortar |
| TIME | Test, Inspect, Measure, And Evaluate |
| RHC | Rubber Hydrocarbon Content |
| WRC | Water Resources Council |
| DIIS | Direct Inversion In The Iterative Space |
| GA | Genetic Algorithm |
| ICCA | International Council Of Chemical Associations |
| IUAPPA | International Union Of Air Pollution Prevention Associations |