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quillwort

[kwil-wurt, -wawrt]
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noun
  1. any fernlike, aquatic marsh plant of the genus Isoëtes, characterized by clustered, quill-like leaves bearing sporangia in their bases.
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Origin of quillwort

First recorded in 1780–90; quill + wort2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for quillwort

Historical Examples

  • Professor Lang has published the first of a series of communications describing the structure of the Quillwort, Isoetes.

    The Annual Register 1914

    Anonymous


British Dictionary definitions for quillwort

quillwort

noun
  1. any aquatic tracheophyte plant of the genus Isoetes, with quill-like leaves at the bases of which are spore-producing structures: family Isoetaceae, phylum Lycopodophyta (club mosses, etc)
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012