| NOUN | substance | cerium, Ce, atomic number 58 | a ductile grey metallic element of the lanthanide series |
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| Meaning | A ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group. | |
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| Synonyms | Ce, atomic number 58 | |
| Broader | metallic element, metal | Any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. |
| Substance of | bastnasite, bastnaesite | A yellow-to-brown mineral that is a source of rare earth elements |
| gadolinite, ytterbite | A mineral that is a source of rare earths | |
| monazite | A reddish-brown mineral containing rare earth metals | |
| Spanish | cerio, número atómico 58 | |
| Catalan | ceri, número atòmic 58 | |
| Adjectives | ceric | of or relating to or containing cerium especially with valence 4 |
| cerous | of or relating to or containing cerium with valence 3 | |
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