| Acronym | Meaning |
![](file.png) | RPMI | Roswell Park Memorial Institute |
![](file.png) | RPO | Resonant Periodic Orbit (on Potential Energy Surface In At. Or Mol. Scattering) |
![](file.png) | RPP | Renal Perfusion Pressure |
![](file.png) | RPP | Reverse Pulse Polarography |
![](file.png) | RPS | Reemitted Positron Spectroscopy |
![](file.png) | RPSA | Rapid Pressure Swing Adsorption |
![](file.png) | RPTP | Receptor Protein Tyrosine Phosphatase |
![](file.png) | RPV | Raccoon Parvovirus |
![](file.png) | RPV | Reactor Pressure Vessel |
![](file.png) | RPWBA | Relativistic Plane-wave Born Approximation |
![](file.png) | RPWBA-BC | RPWBA With Corrections For Increased Binding Energy And Coulomb Deflection |
![](file.png) | RQ | Reportable Quantity |
![](file.png) | RQ | Respiratory Quotient |
![](file.png) | RQCAR | Reportable Quantities For Carcinogens In Hazardous Waste |
![](file.png) | RQCISD | (spin) Restricted QCISD |
![](file.png) | RQDO | Relativistic Quantum Defect Orbital (method In Calcns. Of Oscillator Strengths) |
![](file.png) | RQTOX | Reportable Quantities For Chronically Toxic Hazardous Substances |
![](file.png) | RR | Relative Risk |
![](file.png) | RR | Round Robin (test) |
![](file.png) | RRC | Regional Response Center |
![](file.png) | RRDE | Rotating Ring Disk Electrode |
![](file.png) | RREL | Risk Reduction Engineering Laboratory |
![](file.png) | RRG | Rift-related Granitoids |
![](file.png) | RRGM | Recursive Residue Generation Method |
![](file.png) | RRHO | Rigid Rotor-harmonic Oscillator (approxn.) |
![](file.png) | RRIM | Reinforced Reaction-injection Molding |
![](file.png) | RRM | RNA Recognition Motif |
![](file.png) | RRM | Rayleigh-Ritz Method (for Quantum Calculations) |
![](file.png) | RRNA | Ribosomal Ribonucleic Acid |
![](file.png) | RRPA | Relativistic Random Phase Approximation |
![](file.png) | RRPA | Renormalized Random-phase Approxn. |
![](file.png) | RRPT | Registered Radiation Protection Technologist |
![](file.png) | RRR | Residual Resistivity Ratio |
![](file.png) | RRS | Resonance Raman Spectroscopy |
![](file.png) | RRS | Resonance Rayleigh Scattering |
![](file.png) | RRT | Regional Response Team |
![](file.png) | RRT | Relative Retention Time |
![](file.png) | RS | Rayleigh Schroedinger (perturbation Theory) |
![](file.png) | RS-HFPT | Rayleigh-Schroedinger Hartree-Fock Perturbation Theory |
![](file.png) | RS-LMTO-ASA | Real Space-linear Combination Of Muffin-tin Orbitals-atomic Sphere Approxn. |
![](file.png) | RSA | Rat Serum Albumin |
![](file.png) | RSA | Reverse Saturable Absorption |
![](file.png) | RSAC | Remote Sensing Applications Center (US Forest Service) |
![](file.png) | RSC | Risk Specific Concentration |
![](file.png) | RSC | The Royal Society Of Chemistry |
![](file.png) | RSC | Relative Source Contribution |
![](file.png) | RSC | Residual Sodium Carbonate |
![](file.png) | RSCA | Relativistic Semiclassical Approximation (for At. Scattering) |
![](file.png) | RSCF | Relativistic Self-consistent Field |
![](file.png) | RSCPA | Reduced (second Order) Self-consistent Phonon Approxn. (a Green-function Calcn. Method) |