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duckweed

[duhk-weed] /ˈdʌkˌwid/
noun
1.
any plant of the family Lemnaceae, especially of the genus Lemna, comprising small aquatic plants that float free on still water.
Origin
late Middle English
1400-1450
1400-50; late Middle English dockewede; so called because eaten by ducks
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for duckweed
  • The duckweed method is convenient to use and provides an additional sediment toxicity indicator.
  • The first aquaculture pond will produce aquatic plants, initially duckweed, for extraction of nutrients.
  • Big duckweed, small duckweed, and watermeal are found over much of the surface area.
British Dictionary definitions for duckweed

duckweed

/ˈdʌkˌwiːd/
noun
1.
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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