[ root-bawl, roo t- ]
/ ˈrutˌbɔl, ˈrʊt- /


a roughly spherical aggregate of roots and soil that is transplanted with a plant, especially a tree or shrub.
the ball of soil and roots of a plant growing in a pot or other container.

Origin of rootball

First recorded in 1925–30; root1 + ball1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019