Definitions for ilmenium
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Wiktionary
ilmenium(Noun)
A supposed chemical element, later found to be a mixture of niobium and tantalum.
Origin: . Compare ilmenite.
Webster Dictionary
Ilmenium(noun)
a supposed element claimed to have been discovered by R.Harmann
Citation
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"ilmenium." Definitions.net. STANDS4 LLC, 2013. Web. 23 May 2013. <http://www.definitions.net/definition/ilmenium>.

