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Meaning of quillwort

quill•wort

Pronunciation: (kwil'wûrt", -wôrt"), [key]
— n.
  1. any fernlike, aquatic marsh plant of the genus Isoëtes, characterized by clustered, quill-like leaves bearing sporangia in their bases.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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