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Japanese snowball

noun

Definition of Japanese snowball

1 a : a handsome cultivated shrub (Viburnum plicatum) with large globose clusters of sterile flowers very similar to those of the guelder rose
b : the flower cluster of the Japanese snowball
2 or less commonly Japanese snowbell : a deciduous shrub or small tree (Styrax japonica) having flowers in short glabrous racemes

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