Definition of milk thistle in English:

milk thistle

Syllabification: milk this·tle


  • 1A European thistle with a solitary purple flower and glossy marbled leaves, naturalized in North America and used in herbal medicine.
    • Silybum marianum, family Compositae
    More example sentences
    • Herbs such as dandelion leaf and root, milk thistle, artichoke, Oregon grape root, chelidonium and curcumin also support liver function.
    • They are extracts of milk thistle, European mistletoe and alpha lipoic acid, which all have anti-oxidant properties capable of tackling cancer.
    • For example, milk thistle also is called lady's thistle or St Mary's thistle.
  • 1.1 another term for sow thistle.

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