| Cyclobutan | cyclobutane |
| Cycloalkan | cycloalkane |
| Cycloheptan | cycloheptane |
| Cyclohexan | cyclohexane |
| Cyclopentan | cyclopentane |
| Cyclopropan | cyclopropane |
| Isobutan | isobutane |
| Cyclodextrin | cyclodextrin |
| Cyclohexanol | cyclohexanol Cyclohexyl Alcohol Naxol hexahydrophenol hydrophenol hydroxycyclohexane |
| Cyclone | Cyclone |
| Globulin | globulin |
| Isobuten | isobutene |
| Rambutan | rambutan |
| Butan | butane |
| Coltan | coltan |
| Diplotän | diplotene |
| Zygotän | zygonema zygotene |
| cyclisieren | cyclize |
| recyclebar | recyclable |
| Closure | closure |