Meaning of crown gall

crown' gall"

Pronunciation: [key]
— Plant Pathol. Plant Pathol.
  1. a disease of peaches, apples, roses, grapes, etc., characterized by the formation of galls on the roots or stems usually at or below ground level, caused by a bacterium, Agrobacterium tumefaciens.
  2. the gall itself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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