any oxide containing two oxygen atoms per molecule, both of which are bonded to an atom of another element - another name for a
peroxide 4
WordReference Random House Unabridged Dictionary of American English © 2026
di•ox•ide
(dī ok′sīd, -sid),USA pronunciation n. [Chem.]
- Chemistryan oxide containing two atoms of oxygen, each of which is bonded directly to an atom of a second element, as manganese dioxide, MnO2, or nitrogen dioxide, NO2.
- di-1 + oxide 1840–50
Collins Concise English Dictionary © HarperCollins Publishers::
'dioxide' also found in these entries (note: many are not synonyms or translations):
Black
- Calvin cycle
- Dry Ice
- ECMO
- Krebs cycle
- Kyoto protocol
- Leclanché cell
- Mars
- absorb
- acapnia
- acid rain
- advanced gas-cooled reactor
- aerate
- afterdamp
- air
- alkalimeter
- anatase
- artificial blood
- asphyxia
- autotrophic
- baking powder
- biogas
- biometer
- blackdamp
- borosilicate glass
- breathe
- brookite
- brown heart
- carbon
- carbon credit
- carbon cycle
- carbon dioxide
- carbon footprint
- carbon sink
- carbonatation
- carbonate
- carbonation
- carbonic acid
- carbonic anhydrase
- carbonic-acid gas
- cassiterite
- ceria
- charge
- chlorine dioxide
- chokedamp
- chrome dioxide
- chromium dioxide
- coesite
- contact process
- cyanic acid