root knot

nounPlant Pathology.
  1. a disease of plants, characterized by galls or knots on the roots and stunted growth, caused by any of several nematodes of the genus Meloidogyne.

Origin of root knot

First recorded in 1885–90

Words Nearby root knot Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use root knot in a sentence

  • On light, sandy soils a fairly good crop may be made, but on such soils, wilt and root-knot are dangerous foes.

    Agriculture for Beginners | Charles William Burkett

Scientific definitions for root knot

root knot

  1. A disease of plants characterized by protuberant swellings on the roots caused by infestation with nematodes.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.