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ilmenium
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See also:
Ilmenium
English
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English
Wikipedia
has an article on:
ilmenium
Wikipedia
Etymology
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Ilmen
+
-ium
. Compare
ilmenite
.
Noun
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ilmenium
(
uncountable
)
(
obsolete
)
A supposed
chemical element
, later found to be a mixture of
niobium
and
tantalum
.