pentoxide

American

[pen-tok-sahyd] / pɛnˈtɒk saɪd /

noun

Chemistry.

an oxide containing five atoms of oxygen, as phosphorus pentoxide, P 2 O 5 .

pentoxide British

/ pɛntˈɒksaɪd /

noun

an oxide of an element with five atoms of oxygen per molecule

"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 pentoxide

1860–65; pent- ( def. ) + 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.

His firm plans to produce vanadium pentoxide in South Africa to be used in VRBs that Bushveld hopes to erect across Africa.

From Economist

Wyser said vanadium pentoxide was available and cheap, but was just one of many materials being tested for car batteries at the moment with an uncertain outcome.

From Reuters

Such oxides as sulphur trioxide, nitrogen pentoxide, etc., do not possess acid properties except in combination with water.

From Project Gutenberg

Maleic anhydride is obtained by distilling fumaric acid with phosphorus pentoxide.

From Project Gutenberg

That is possible because this part of the transistor is made of tantalum pentoxide, a material whose atoms are arranged in a lattice which contains holes large enough for copper atoms to squeeze through.

From Economist

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