Duckweed

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Duckweed \Duck"weed`\, n. (Bot.)
     A genus ({Lemna}) of small plants, seen floating in great
     quantity on the surface of stagnant pools fresh water, and
     supposed to furnish food for ducks; -- called also
     {duckmeat}.
     [1913 Webster]



From WordNet (r) 2.0 [wn]:

  duckweed
       n : any small or minute aquatic plant of the family Lemnaceae
           that float on or near the surface of shallow ponds