pondweed

• Nom désignant toute plante aquatique d'eau douce, immergée ou flottante, vivace, appartenant notamment au genre Potamogeton, ou plus largement toute plante herbacée poussant dans l'eau.

A noun referring to any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae.

1. Aquatic plantC1formal

   Any of several submerged or floating freshwater perennial aquatic weeds belonging to the family Potamogetonaceae.

   Potamot

   • Pondweed grows abundantly in the shallow waters of the lake.
   • The biologist identified several species of pondweed in the pond.
   • Dense patches of pondweed provide shelter for small fish.

   Synonymespotamogeton

2. C1formal

   A type of submerged freshwater perennial plant that grows in still or slow-moving water.

   Potamot

   • Submerged pondweed helps oxygenate the water in aquariums.
   • The pond was choked with pondweed after the warm summer.
   • Ducks often feed on the tender leaves of pondweed.