noun Date: 1578 any of a genus ( Potamogeton of the family Potamogetonaceae, the ~ family) of aquatic plants with jointed usually rooting stems, floating or submerged leaves, and spikes of greenish flowers
PONDWEED
Meaning of PONDWEED in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012