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1. (Plants) a large deciduous shrub, Viburnum opulus, of the Caprifoliaceae family, native to Europe and eastern parts of North America. Also called: guelder rose or American cranberry
2. (Complementary Medicine) the bark of the Viburnum opulus shrub, commonly used in antispasmodic remedies
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|Noun||1.||crampbark - deciduous thicket-forming Old World shrub with clusters of white flowers and small bright red berries|