| Acronym | Meaning |
 | ROHS | Restrictions On Hazardous Substances |
| TARFOX | Tropospheric Aerosol Radiative Forcing Observation Experiment |
| PSP | Pressure-sensitive Paint |
| RZM | Root Zone Method (of Wastewater Treatment) |
| RT | Reverse Transcriptase |
| RCR | Replication-competent Retrovirus |
| CAI | Calcium Aluminum Inclusion |
| CDIR | Carbon Dioxide Information Repository |
| MPD | Multiphoton Dissociation |
| VO | Virtual Orbital |
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