| Abbreviation | Definition |
|---|---|
| RTPA | Recombinant Tissue Plasminogen Activator |
| RTPCR | Reverse Transcriptase Polymerase Chain Reaction |
| RT-PCR | Reverse Transcription Polymerase Chain Reaction |
| RTPR | Ribonucleoside TriPhosphate Reductase |
| RWV | Rotating Wall Vessel |
| RYK | Receptor-like Tyrosine Kinase |
| RYM | Read Your Manual |
| SAG | Senescence Associated Gene |
| SAGE | Sativa Afghani Genetic Equilibrium |
| SAGE | Serial Analysis of Gene Expression |
| SAHG | Structure Atlas of Human Genome |
| SAL | Sentient Artificial Life |
| SAM | Scriptable Artificial Mind |
| SAM | Sentient Autonomous Mechanism |
| SAM | Small Android Model |
| SAMA | Scientific Apparatus Makers Association |
| SAP | Secreted Acid Phosphatase |
| SAP | Slam Associated Protein |
| SAP | SLAM-Associated (Signalling Lymphocyte Activation Molecule) Protein |
| SAP | Staphylococcus Aureus Protease |