any plant of the family Lemnaceae, especially of the genus Lemna, comprising small aquatic plants that float free on still water.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use duckweed in a sentence
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
Waterlilies and duckweed are not the chief part of this floating mass.
There is a large pond in the midst of the garden, covered with duckweed, and full of beautiful gold and silver fish of many kinds.A Voyage in the 'Sunbeam' | Annie Allnut Brassey
The river is rising fast, and bringing down large quantities of aquatic grass, duckweed, &c.
Out of this lagoon, and by this stream, the chief part of the duckweed of the Shiré flows.
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