hemipteranPronunciation: /hɪˈmɪpt(ə)r(ə)n/ EntomologyDefinition of hemipteran noun an insect of the order Hemiptera or bugs, such as an aphid, cicada, or leafhopper. adjective relating to or denoting hemipterans. Derivatives hemipterous adjective hemipteran in other Oxford dictionaries Definition of hemipteran in the US English dictionary