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Definition of polygonum

polygonum

/pəˈlɪɡənəm/
po · lyg · o · num
Plural:polygonums
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polygonum Lexical Profile

polygonum Game Scores & Validity

• noun

1

Any herbaceous plant or subshrub of the genus Polygonum (commonly known as knotweed or smartweed) in the buckwheat family Polygonaceae, native primarily to northern temperate regions and characterized by swollen, jointed stems and small, dense clusters or spikes of pink, white, or greenish flowers.

Synonyms
View all synonyms for polygonum

• Rhymes for polygonum

• Nearby Words

polyanthus
polygala
polygonatum
polygonum
polypterus
polyzoa
pomarrosa

Word Origin & Etymology

Borrowed from Latin polygonum, from Ancient Greek polygonon, combining polys ('many') and gony ('knee' or 'joint'), referring to the numerous swollen, knee-like nodes along the stems of these plants.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Polygonum. In Wordmom Dictionary. Retrieved Oct 19, 2026, from https://wordmom.com/dictionary/polygonum
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