trioxide

[ trahy-ok-sahyd, -sid ]

/ traɪˈɒk saɪd, -sɪd /

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noun Chemistry.

an oxide containing three oxygen atoms, as As2O3.

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Origin of trioxide

First recorded in 1865–70; tri- + oxide

Words nearby trioxide

triol, triolein, triolet, triose, trio sonata, trioxide, trip, tripalmitin, triparted, tripartite, tripartite and fretty

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use trioxide in a sentence

Sulphur trioxide forms thin needle-shaped crystals, arranged in feathery groups.
Poisons: Their Effects and Detection|Alexander Wynter Blyth
It is weighed when cold, and is the trioxide or "tungstic acid" (WO3), which contains 79.31 per cent.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
All molybdenum compounds are converted into the trioxide by boiling with nitric acid.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
The trioxide is a white powder readily dissolved by ammonia.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer

These are the borates in which the trioxide (B2O3) acts the part of a weak acid.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer

British Dictionary definitions for trioxide

trioxide

/ (traɪˈɒksaɪd) /

noun

any oxide that contains three oxygen atoms per moleculesulphur trioxide, SO 3

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