clubroot

noun
club·root | \ ˈkləb-ˌrüt , -ˌru̇t \

Definition of clubroot 

: a disease of cruciferous plants (such as cabbage) caused by a slime mold (Plasmodiophora brassicae) producing swellings or distortions of the root

First Known Use of clubroot

1846, in the meaning defined above

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The first known use of clubroot was in 1846

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