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[duhk-weed] /ˈdʌkˌwid/
any plant of the family Lemnaceae, especially of the genus Lemna, comprising small aquatic plants that float free on still water.
Origin of duckweed
late Middle English
1400-50; late Middle English dockewede; so called because eaten by ducks Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for duckweed
Historical Examples
  • He wants a pond or a muddy brook, and plenty of duckweed to hide under.

    Pond and Stream Arthur Ransome
  • As soon as we had plenty of duckweed and plenty of snails, we went on over the fields to the beck.

    Pond and Stream Arthur Ransome
  • duckweed, the popular name of several species of Lemna, nat.

  • Behind them was a broad ring of stagnant water covered with duckweed.

    Combed Out

    Fritz August Voigt
  • Many of the craters half-filled with water already had duckweed growing.

    Fanny Goes to War Pat Beauchamp
  • But the farm had fallen on evil days at the hands of Paddy Magragh, and the reservoir was choked with cresses and duckweed.

    Lives of the Fur Folk M. D. Haviland
  • There she stood upon the bank a dripping object, her nice dress all coated with duckweed and green slime.

  • On the 4th November they saw patches of duckweed and a seal, and inferred their vicinity to land.

  • A freshwater Hydra, growing on the duckweed usually multiplies by budding.

  • I stayed by a large pond to look at the shadows of the trees on the green surface of duckweed.

    The Open Air Richard Jefferies
British Dictionary definitions for duckweed


any of various small stemless aquatic plants of the family Lemnaceae, esp any of the genus Lemna, that have rounded leaves and occur floating on still water in temperate regions
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
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