(inorganic chemistry) The binary compound NO₂, a brownish gas that is a poisonous air pollutant; it exists in equilibrium with dinitrogen tetroxide.

a reddish-yellow explosive gas, ClO₂, used as a water disinfectant and to bleach flour and wood pulp

(inorganic chemistry) A black, semiconducting material, CrO₂, having strong magnetic properties; used in recording tapes.

(inorganic chemistry) The yellow-brown solid, PuO₂, formed by the spontaneous oxidation of plutonium metal; it is used in mixed oxide fuel for nuclear reactors

plural of titanium dioxide

(organic chemistry) The linear oxocarbon having five carbon atoms

(organic chemistry) The linear oxocarbon having four carbon atoms

(organic chemistry) The linear oxocarbon having three carbon atoms

Synonym of calcium peroxide

(inorganic chemistry) The chemical compound MnO₂; a brown or black solid used as a component of dry cell batteries.