WordReference Random House Unabridged Dictionary of American English © 2019
pot•bound  (potbound′),USA pronunciation adj. [Hort.]
  1. Botany(of a plant) having the roots so densely grown as to fill the container and require repotting.
  • pot1 + -bound1 1840–50

Collins Concise English Dictionary © HarperCollins Publishers::

pot-bound adj
  1. (of a pot plant) having grown to fill all the available root space and therefore lacking room for continued growth


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