pondweed [
'pɒndwi:d]
n. 水池草
pondweed[ noun ]- any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae
<noun.plant>
- submerged freshwater perennials
<noun.plant>
Pondweed \Pond"weed`\, n. (Bot.)
Any aquatic plant of the genus {Potamogeton}, of which many
species are found in ponds or slow-moving rivers.
{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.