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root knot

Word Origin

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.

Origin of root knot

1885-1890

First recorded in 1885-90

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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root knot in Science

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

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Word Value for root

4

4

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