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(Plants) any of several herbs of the family Umbelliferae which were formerly used in medicine, esp Peucedanum ostruthium
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|Noun||1.||masterwort - any plant of the genus Astrantia|
herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests
genus Astrantia - a genus of Eurasian herbs of the family Umbelliferae with aromatic roots and palmate leaves and showy flowers