ruthenious
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ru·the·ni·ous
(ro͞o-thē′nē-əs)adj.
Relating to or containing ruthenium with a low valence.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ruthenious
(ruːˈθiːnɪəs)adj
(Elements & Compounds) of or containing ruthenium in a divalent state
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014