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osmious

[oz-mee-uh s]
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adjective Chemistry.
  1. of or containing osmium in its lower valences.
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Also os·mous [oz-muh s] /ˈɒz məs/.

Origin of osmious

First recorded in 1840–50; osmi(um) + -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for osmious

osmious

adjective
  1. another word for osmous
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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