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knotweed
3 dictionary results for: Knotweed
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

knot⋅weed

[not-weed]
–noun
any of several knotty-stemmed plants belonging to the genus Polygonum, of the buckwheat family.

Origin:
1570–80; knot 1 + weed 1
American Heritage Dictionary - Cite This Source - Share This
knot·weed     (nŏt'wēd')  Pronunciation Key 
n.   Any of several plants of the genus Polygonum, with jointed stems and inconspicuous flowers.
Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Knotweed

Knot"weed"\ (n>ocr/t"w[=e]d`), n. (Bot.) See Knot?rass.

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