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
Word origin
[1895–1900]
Examples of 'crown gall' in a sentence
crown gall
This is crown gall, a large, distorted growth that is caused by a bacterial infection.