Entry 2 senses · 2 variants Webster, 1913 azide · IPA /ˈeɪzaɪd/ n. n. 01 n. a compound containing the azido group combined with an element or radical. 1. a compound containing the azido group combined with an element or radical. 02 n. any chemical compound containing the azido group -N3, such as sodium azide (ionic and inorganic) or ethyl azide (organic and nonionic). 1. any chemical compound containing the azido group -N3, such as sodium azide (ionic and inorganic) or ethyl azide (organic and nonionic).(Chem.)