Showing results for trioxide. Search instead for trioxids.

trioxide

American

[trahy-ok-sahyd, -sid] / traɪˈɒk saɪd, -sɪd /

noun

Chemistry.

an oxide containing three oxygen atoms, as As 2 O 3 .

trioxide British

/ traɪˈɒksaɪd /

noun

any oxide that contains three oxygen atoms per molecule

sulphur trioxide, SO3

"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

Etymology

Origin of trioxide

First recorded in 1865–70; tri- + oxide

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

trioxide

A metallic compound, molybdenum trioxide can be used to make tough, heat-resistant alloys used in armored vehicles or missile engines.

From The Wall Street Journal ● Nov. 3, 2026

Researchers at Tampere University have discovered that sulfur trioxide can form products other than sulfuric acid in the atmosphere by interacting with organic and inorganic acids.

From Science Daily ● May 23, 2024

Both antimony trioxide and the suite of haloacetic acids have previously been recognized by state and federal agencies as hazardous substances.

From Salon ● Jan. 12, 2022

The heating process causes the loss of more sulfur trioxide than water, until reaching a concentration of 98.33% acid.

From Textbooks ● Feb. 14, 2019

When phosphorus burns in an insufficient supply of air the product is partially the trioxide; in oxygen or an excess of air the pentoxide is formed.

From An Elementary Study of Chemistry by William McPherson

Random Word

Spin the wheel and learn a new word!

Get a word

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023