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knotweed

Syllabification: (knot·weed)
Pronunciation: /ˈnätˌwēd/

Definition of knotweed

noun

  • a plant of the dock family that typically has sheaths where the leaves join the stems. It is often an invasive weed.
    • Polygonum and other genera, family Polygonaceae: several species, in particular Japanese knotweed
  • knotgrass.

knotweed in other Oxford dictionaries

Definition of knotweed in the British & World English dictionary
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