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Definition of Viburnum prunifolium
1. Noun. Upright deciduous shrub having frosted dark-blue fruit; east and east central North America.
Medical Definition of Viburnum prunifolium
1. A medication derived from the root bark of Viburnum prunifolium (family Caprifoliaceae); contains viburnin; bitter resin; tannin; sugar; citric, malic, oxalic and valeric acids. Formerly used as a smooth muscle relaxant/antispasmodic (uterine). (05 Mar 2000)