milk thistle


milk thistle

noun

Definition of MILK THISTLE

: a tall thistle (Silybum marianum) having white-veined dark green leaves and large purple flower heads that is native to the Mediterranean region but has become naturalized elsewhere including the United States; also : an extract of milk thistle and especially its seeds that is held to protect the liver from damage or disease

First Known Use of MILK THISTLE

1562

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