tetroxide

American  

[te-trok-sahyd, -sid] / tɛˈtrɒk saɪd, -sɪd /

noun

Chemistry.

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

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tetroxide British  

/ tɛˈtrɒksɪd, tɛˈtrɒksaɪd /

noun

1. any oxide that contains four oxygen atoms per molecule

   osmium tetroxide, OsO4

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Etymology

Origin of tetroxide

First recorded in 1865–70; tetr- + oxide

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.

From New York Times

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.

From Scientific American

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.

From Washington Post