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dioxide

American  
[dahy-ok-sahyd, -sid] / daɪˈɒk saɪd, -sɪd /

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 British  
/ 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

"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

dioxide Scientific  
/ dī-ŏksīd /
  1. A compound containing two oxygen atoms per molecule.


Etymology

Origin of dioxide

First recorded in 1840–50; di- 1 + 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.

Scientists are raising new concerns after a study found that microplastics are interfering with the ocean's ability to absorb carbon dioxide, a process that plays a vital role in regulating Earth's temperature.

From Science Daily

The 2009 finding concluded that six greenhouse gases -- including carbon dioxide and methane -- endanger public health and welfare by driving climate change.

From Barron's

The researchers estimate that if nitrogen shortages affect young tropical forests worldwide, about 0.69 billion tonnes of carbon dioxide may be failing to be stored each year.

From Science Daily

When this process falters, phytoplankton grow more slowly, capture less sunlight, and remove less carbon dioxide from the atmosphere.

From Science Daily

These microscopic pores act like adjustable valves, letting carbon dioxide enter the leaf for photosynthesis while allowing water vapor to escape into the air.

From Science Daily