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tantalous

[ tan-tl-uhs ]

adjective

, Chemistry.
  1. containing trivalent tantalum.


tantalous

/ ˈtæntələs /

adjective

  1. of or containing tantalum in the trivalent 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
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Word History and Origins

Origin of tantalous1

First recorded in 1865–70; tantal(um) + -ous
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Word History and Origins

Origin of tantalous1

C19: from tantal ( um ) + -ous

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tantalizingtantalum