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tetroxide

[te-trok-sahyd, -sid] /tɛˈtrɒk saɪd, -sɪd/
noun, Chemistry.
1.
an oxide whose molecule contains four atoms of oxygen.
Origin of tetroxide
1865-1870
First recorded in 1865-70; tetr- + oxide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for tetroxide

tetroxide

/tɛˈtrɒksaɪd/
noun
1.
any oxide that contains four oxygen atoms per molecule: osmium tetroxide, OsO4
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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