| Calciumoxid | calcium oxide |
| Calcitonin | calcitonin |
| Calciumcarbid | calcium carbide |
| Calciumhydroxid | calcium hydroxide |
| Calcium | calcium |
| Yttriumoxid | yttrium oxide |
| Calimocho | calimocho |
| Siliciumdioxid | silicon dioxide |
| Berylliumoxid | beryllium oxide |
| Magnesiumoxid | magnesium oxide |
| Chlordioxid | chlorine dioxide |
| Calcit | calcite |
| Calcitriol | calcitriol |
| Callisto | Callisto |
| Calumet | peace pipe |
| Calvinistin | Calvinist |
| calcinieren | calcine |
| Calciumcitrat | calcium citrate |
| Callingcard | calling card |
| Alchemie | alchemy |