[n] any of numerous trees or shrubs or vines of the family Rubiaceae
angiosperm, family Rubiaceae, flowering plant, Indian madder, madder, madder family, munjeet, Rubia cordifolia, Rubia tinctorum, Rubiaceae
\Mad"der*wort`\, n. (Bot.) A name proposed for any plant of the same natural order (Rubiace[ae]) as the madder.