root knot

noun

, Plant 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.

root knot

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

Word History and Origins

Origin of root knot¹

First recorded in 1885–90

Example Sentences

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

From Project Gutenberg