| Acronym | Meaning |
| RSMP | Rayleigh-Schroedinger-Moeller-Plesset Perturbation |
| SOA | Semiconductor Optical Amplifier |
| GJIC | Gap Junctional Intercellular Communication |
| ROMP | Ring-opening Metathesis Polymerization |
| RSW | Resistance Spot Welding |
| NPDWR | National Primary Drinking Water Regulations |
| NAPIM | National Association Of Printing Ink Manufacturers (US) |
| CAEAL | Canadian Association For Environmental Analytical Laboratories |
| RTPCR | Reverse Transcriptase Polymerase Chain Reaction |
| HCCO | Heavy Catalytic Cycle Oil |