R. Hermann's name for: a supposed metallic element discovered in the mineral tantalite. disused.
| 单词 | θ68800 |
| 释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > tantalum > [noun] > element similar to (1) neptunium1877 R. Hermann's name for: a supposed metallic element discovered in the mineral tantalite. disused. |
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