• Webster's Revised Unabridged Dictionary
    • n Yellowwort (Bot) 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.
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Century Dictionary and Cyclopedia
    • n yellowwort A European annual plant, Chlora perfoliata, of the gentian family. It is a very glaucous plant, about a foot high, the stem-leaves in pairs and connate-perfoliate, the flowers bright-yellow in loose terminal cymes. Also called yellow centaury.
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