waterweed

Other forms: waterweeds

Definitions of waterweed

1. noun

   a weedy aquatic plant of genus Elodea
   types:

   Canadian pondweed, Elodea canadensis

   North American waterweed; widely naturalized in Europe

   Egeria densa, Elodea densa, dense-leaved elodea

   aquatic plant with deep green foliage useful to oxygenate an aquarium; sometimes placed in genus Egeria

   type of:

   aquatic plant, hydrophyte, hydrophytic plant, water plant

   a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth