narrow-leaved plantain nar·row·lea·vedplantain uncommon noun 1. an Old World plantain with long narrow ribbed leaves widely established in temperate regions SynonymsEnglish plantainnarrow-leaved plantainribgrassribwortripple-grassbuckthornPlantago lanceolata Related words Broader terms plantain WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
