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rootball

[root-bawl, roo t-]
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noun
  1. a roughly spherical aggregate of roots and soil that is transplanted with a plant, especially a tree or shrub.
  2. the ball of soil and roots of a plant growing in a pot or other container.
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Origin of rootball

First recorded in 1925–30; root1 + ball1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018