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

Some of the nitrogen tetroxide appears to have permeated through Teflon seals and interacted with moisture on the other side to produce nitric acid, Mr. Vollmer said.

From New York Times • Aug. 13, 2021

Examples include SF6, sulfur hexafluoride, and N2O4, dinitrogen tetroxide.

From Textbooks • Feb. 14, 2019

For secondary fixation, we used 2% osmium tetroxide in 1.25% sodium bicarbonate for 2–3 h at room temperature.

From Nature • May 20, 2014

Sometime that morning, massive tanks of aerozene 50 and nitrogen tetroxide would mix and explode in the belly of the Titan, producing an eruptive thrust of 430,000 lbs. and hurling the men into orbit.

From Time • Oct. 14, 2013

The residue is a white infusible powder, and consists of antimony tetroxide, Sb2O4, containing 78.94 per cent. of the metal.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius