| English | Synonym |
|---|---|
| cobalt noun | atomic number 27noun Conoun metalnoun metallic elementnoun |
| cobalt 60 noun | atomic number 27noun Conoun cobaltnoun |
| cobalt bloom noun | erythritenoun mineralnoun |
| cobalt blue noun | aquanoun aquamarinenoun bluenoun bluenessnoun greenish bluenoun peacock bluenoun pigmentnoun turquoisenoun |
| cobalt ultramarine noun | cobalt bluenoun pigmentnoun |
| cobaltite noun | mineralnoun |