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rootworm

[root-wurm, roo t-] /ˈrutˌwɜrm, ˈrʊt-/
noun
1.
the larva of any of several insects, as the cucumber beetle, that feeds on the roots of plants.
2.
any of several nematodes, especially of the genus Heterodera, that puncture and feed in the roots of plants.
Origin
1795-1805
1795-1805; root1 + worm
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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