| 单词 | polygonum |
| 释义 | Word Frequency polygonum(pəˈlɪɡənəm) noun 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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