pentoxide

[ pen-tok-sahyd ]

noun

, Chemistry.

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

pentoxide

/ pɛntˈɒksaɪd /

noun

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

Word History and Origins

Origin of pentoxide¹

1860–65; pent- ( def ) + oxide

Example Sentences

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