English word neodymium comes from English neo-, English didymium
| Dictionary entry | Language | Definition |
|---|---|---|
| neo- | English (eng) | (organic chemistry) Being a newly-discovered or -synthesized variant of an existing compound. (organic chemistry) Having a structure, similar to that of neopentane, in which each hydrogen atom of a methyl group has been replaced by an alkyl group. Contemporary. New. |
| didymium | English (eng) | A mixture of praseodymium and neodymium once thought to be an element (symbol Di). |
| neodymium | English (eng) | (countable) A single atom of this element.. A metallic chemical element (symbol Nd) with an atomic number of 60. |