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English Dictionary

polygonum  (pəˈlɪɡənəm



  1. any polygonaceous plant of the genus Polygonum, having stems with knotlike joints and spikes of small white, green, or pink flowers Also called (obsolete): polygony See also knotgrass, bistort, prince's feather (sense 2

Word Origin

C18: New Latin, from Greek polugonon knotgrass, from polu- poly- + -gonon, from gonu knee


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