dioxide

/daɪˌɑkˈsaɪd/

/daɪˈɒksaɪd/

Other forms: dioxides

Definitions of dioxide

1. noun

   an oxide containing two atoms of oxygen in the molecule
   types:

   nitrogen dioxide

   a highly poisonous brown gas (NO2)

   CO2, carbon dioxide, carbonic acid gas

   a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances; absorbed from the air by plants in photosynthesis

   chlorine dioxide

   an explosive gas (ClO2) used chiefly in bleaching paper or starch or soap or flour and in water purification

   sulfur dioxide, sulphur dioxide

   a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain

   blackdamp, chokedamp

   the atmosphere in a mine following an explosion; high in carbon dioxide and incapable of supporting life

   type of:

   oxide

   any compound of oxygen with another element or a radical