| 释义 |
bis·tort
\ˈbiˌstȯrt, biˈs\ noun
(-s)
Etymology: Middle French bistorte, from (assumed) Medieval Latin bistorta, from Latin bis- + torta, feminine of tortus, past participle of torquēre to twist — more at torture
: any of several plants of the genus Polygonum; especially : either a European herbaceous plant (P. bistorta) or a related American form (P. bistortoides) the twisted roots of which are used as astringents |