hymenopteran UK /ˌhʌɪ.mɛˈnɒp.tə.ɹən/US /ˌhaɪ.məˈnɑp.təɹ.ən/adjective 1noun 1forms 1 adjective1 •Relating to or denoting hymenopterans. noun1 •Any insect of the order Hymenoptera: the bees, wasps and ants etc. formshymenopterans