n. [ Gr. le`wn, le`ontos, lion + 'odoy`s, 'odo`ntos, tooth. Cf. Lion's-tooth, Dandelion. ] (Bot.) A genus of liguliflorous composite plants, including the fall dandelion (Leontodon autumnale), and formerly the true dandelion; -- called also lion's tooth. [ 1913 Webster ]