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tetroxide

[ te-trok-sahyd, -sid ]

noun

, Chemistry.
  1. an oxide whose molecule contains four atoms of oxygen.


tetroxide

/ tɛˈtrɒksɪd; 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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Word History and Origins

Origin of tetroxide1

First recorded in 1865–70; tetr- + oxide
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Example Sentences

Mr. Vollmer said the problem occurred among 24 valves that control the flow of nitrogen tetroxide, a propellant used by Starliner’s thrusters.

Orange clouds in the video might be toxic hydrazine and nitrogen tetroxide, which fuel the rocket’s first stage.

From Nature

The elevated levels of nitrogen tetroxide around Crew Dragon reinforce the necessity of keeping the splashdown area clear throughout the recovery process, he added.

Not content with that, Prof Poliakoff and Mr Barnes then placed a second new fiver in a beaker and filled it with "fuming nitric acid" - a "witches' brew" of nitric acid plus dinitrogen tetroxide.

From BBC

Police allege that Phillips possessed osmium tetroxide for a dangerous purpose.

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