D defs.my
Entry 1 sense Webster, 1913

Dioxide

/dī-äk'-sīdˌ/ · Di·ox·ide · IPA /daɪˈɒksaɪd/
01 n. An oxide containing two atoms of oxygen in each molecule; binoxide.
  1. 1.
    An oxide containing two atoms of oxygen in each molecule; binoxide.(Chem.) [Obs.]
Phrases & compounds
Carbon dioxide — See Carbonic acid, under Carbonic.