genus Gentianella ge·nus·gen·tianella uncommon noun 1. genus of herbs with flowers that resemble gentian; in some classifications included in genus Gentiana SynonymsGentianellagenus Gentianella Related words Broader terms dicot genus Parts Gentianaceae Part of agueweedfelwort WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.