DictyopteraPronunciation: /ˌdɪktɪˈɒptərə/Definition of Dictyoptera noun Entomology an order of insects that comprises the cockroaches and mantises. They have a somewhat flattened form, two pairs of wings, and long spiky legs. Derivatives dictyopteran noun & adjective Origin:modern Latin (plural), from Greek diktuon 'net' + pteron 'wing'Dictyoptera in other Oxford dictionaries Definition of Dictyoptera in the US English dictionary