polygonaceous

US:USA pronunciation: respellingUSA pronunciation: respelling(pol′ē gə nā′shəs, pə lig′ə nā′-)


WordReference Random House Unabridged Dictionary of American English © 2026
pol•y•go•na•ceous  (pol′ē gə nā′shəs, pə lig′ə nā′-),USA pronunciation adj. 
  1. Plant Biologybelonging to the Polygonaceae, the buckwheat family of plants. Cf. buckwheat family. 
  • Greek polýgonon knotgrass, literally, something with many joints; see poly-, knee, -gon) + -aceae -aceae) + -ous
  • Neo-Latin Polygonace(ae) (Polygon(um) the type genus (
  • 1870–75

'polygonaceous' also found in these entries (note: many are not synonyms or translations):
bistort - buckwheat - dock - knotgrass - polygonum - prince's feather - rhubarb - sorrel

Forum discussions with the word(s) "polygonaceous" in the title:


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