• (n.) A compound of a binary type containing two atoms of iodine; -- called also biniodide.
Di·i'o·dide noun [ Prefix di- + iod ine.] (Chemistry) A compound of a binary type containing two atoms of iodine; -- called also biniodide . 
Type: Term Pronunciation: dī-ī′ō-dīd Definitions: 1. A compound containing two atoms of iodine per molecule.