American Heritage® Dictionary of the English Language, Fourth Edition
- n. The name formerly used for dubnium. Also called unnilpentium.
- n. chemistry, obsolete A rejected name for dubnium.
- n. a transuranic element
- After Otto Hahn. (American Heritage® Dictionary of the English Language, Fourth Edition)
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These user-created lists contain the word ‘hahnium’.
Words that sound like they might be the names of elements of the periodic table, but that aren't. Many of the words listed here were actually proposed as names for substances their creators thought...
miscellaneous words that weren't here till I added them
Names and spellings formerly used for elements. Not entirely complete because I refuse to take notice of some of the sillier ones.
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