• Webster's Revised Unabridged Dictionary
    • n Bistort (Bot) An herbaceous plant of the genus Polygonum, section Bistorta; snakeweed; adderwort. Its root is used in medicine as an astringent.
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Century Dictionary and Cyclopedia
    • n bistort A plant, Polygonum Bistorta, so called because of its twisted roots: popularly called snakeweed and adder's-wort. Alpine bistort is a dwarf allied species, alpine and arctic, P. viviparum.
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Chambers's Twentieth Century Dictionary
    • n Bistort bis′tort a perennial plant with astringent properties (Polygonum bistorta), so named from its twisted roots, called also Snakeweed and Adder's Wort.
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Webster's Revised Unabridged Dictionary
L. bis, + tortus, p. p. of torquere, to twist: cf. F. bistorte,
Chambers's Twentieth Century Dictionary
Fr.—L. bistorta; bis, twice, torta, twisted.


In literature:

Bistort makes pink islands amid hay grass that waits the scythe.
"Lancashire" by Leo H. (Leo Hartley) Grindon