order Hymenoptera or·der·hy·menoptera uncommon noun 1. an order of insects including: bees; wasps; ants; ichneumons; sawflies; gall wasps; etc. SynonymsHymenopteraorder Hymenoptera Related words Broader terms animal order Parts Insecta Part of hymenopterous insectApoideaVespidaeSphecoideaCynipidaeChalcididaeIchneumonidaeTenthredinidae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.