Pondweed

2 definitions found

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

  Pondweed \Pond"weed`\, n. (Bot.)
     Any aquatic plant of the genus {Potamogeton}, of which many
     species are found in ponds or slow-moving rivers.
     [1913 Webster]
  
     {Choke pondweed}, an American water weed ({Anarcharis


        Canadensis}, syn. {Elodea Canadensis}.) See {Anacharis}.
        
  
     {Horned pondweed}, the {Zannichellia palustris}, a slender,
        branching aquatic plant, having pointed nutlets.
        [1913 Webster]

From WordNet (r) 2.0 [wn]:

  pondweed
       n 1: any of several submerged or floating freshwater perennial
            aquatic weeds belonging to the family Potamogetonaceae
       2: submerged freshwater perennials [syn: {Elodea}, {genus
          Elodea}, {ditchmoss}]