from The Century Dictionary.

  • noun A composite plant, Eupatorium perfoliatum, common in eastern North America.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Same as boneset.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any of several plants of the genus Eupatorium.
  • noun The common boneset.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun perennial herb of southeastern United States having white-rayed flower heads; formerly used as in folk medicine


from The American Heritage® Dictionary of the English Language, 4th Edition

[thorough, through (from the fact that its branches appear to grow through the leaves) + wort.]


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  • The conversation became at once professional after the briefest preliminaries, and he would stand twirling a sweet-scented sprig in his fingers, and make suggestive jokes, perhaps about her faith in a too persistent course of thoroughwort elixir, in which my landlady professed such firm belief as sometimes to endanger the life and usefulness of worthy neighbors.

    --Sarah Orne Jewett, 1896, The Country of the Pointed Firs

    January 28, 2010