• (n.) A European yellow-flowered, gentianaceous (Chlora perfoliata). The whole plant is intensely bitter, and is sometimes used as a tonic, and also in dyeing yellow.
Yel'low·wort` noun (Botany) A European yellow-flowered, gentianaceous ( Chlora perfoliata ). The whole plant is intensely bitter, and is sometimes used as a tonic, and also in dyeing yellow.