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ruthenic

American  
[roo-then-ik, -thee-nik] / ruˈθɛn ɪk, -ˈθi nɪk /

adjective

Chemistry.
  1. containing ruthenium in a higher valence state than the corresponding ruthenious compound.


ruthenic British  
/ ruːˈθɛnɪk /

adjective

  1. of or containing ruthenium, esp in a high valency state

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ruthenic

First recorded in 1840–50; ruthen(ium) + -ic