dioxide

[ dahy-ok-sahyd, -sid ]

noun

, Chemistry.

1. an oxide containing two atoms of oxygen, each of which is bonded directly to an atom of a second element, as manganese dioxide, MnO 2 , or nitrogen dioxide, NO 2 .

dioxide

/ daɪˈɒksaɪd /

noun

1. any oxide containing two oxygen atoms per molecule, both of which are bonded to an atom of another element
2. another name for a peroxide

dioxide

/ dī-ŏk′sīd /

1. A compound containing two oxygen atoms per molecule.

Word History and Origins

Origin of dioxide¹

First recorded in 1840–50; di- ¹ + oxide

Example Sentences

Chemists have developed a novel way to capture and convert carbon dioxide into methane, suggesting that future gas emissions could be converted into an alternative fuel using electricity from renewable sources.

From Science Daily

Capturing methane, a greenhouse gas over 80 times more potent than carbon dioxide in the short term, is vital for combating climate change.

From Los Angeles Times

For example, methane is of particular relevance to the global greenhouse effect because its warming potential is 25 times higher than that of carbon dioxide.

From Science Daily

This is a region that has historically helped to buffer the world from further warming, by absorbing some of the carbon dioxide produced from human activities.

From BBC

But when trees die, the wood rots and the stored carbon dioxide is released back into the air.

From NewsForKids.net