illinium


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Related to illinium: Element 61

illinium

(ɪˈlɪnɪəm)
n
(Elements & Compounds) chem the former name for promethium
[C20: New Latin, from Illinois + -ium]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Along the way were surprises: For example, finding illinium (later replaced by promethium) did not leave just two more elements to discover, as initially claimed in 1926.
Elementary finds stack up
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