| Terms for subject Environment (27984 entries) |
| R 115 | CClF2CF3 | |
| R 115 | chloropentafluoroethane | |
| R 115 | fluorocarbon-115 | |
| R 115 | monochloropentafluoroethane | |
| R 142b | 1,1,1-chlorodifluoroethane | |
| R 142b | 1,1,1-difluorochloroethane | |
| R 142b | difluoromonochloroethane | |
| R 142b | fluorocarbon-142b | |
| R22 | R-22 | |
| R22 | chlorodifluoromethane | |
| R22 | difluorochloromethane | |
| R22 | difluoromonochloromethane | |
| R22 | fluorocarbon 22 | |
| R22 | hydrochlorofluorocarbon-22 | |
| R22 | monochlorodifluoromethane | |
| R22 | refrigerant 22 | |
| R58 | may cause long-term adverse effects in the environment | |
| Rabenkrähe | crow | |
| Rackenvögel | kingfishers and kin | |
| Radar | radar (A system using beamed and reflected radiofrequency energy for detecting and locating objects, measuring distance or altitude, navigating, homing, bombing and other purposes) |