noun
- a small floating aquatic plant that forms dense mats on the surface of ponds and slow-moving water
Examples
- The pond was completely covered with bright green duckweed.
- Ducks often feed on duckweed floating on the water’s surface.
- The gardener removed the excess duckweed to prevent it from blocking sunlight.
- Duckweed can multiply rapidly in nutrient-rich water.
- The tiny duckweed plants have no true roots or stems.
- Fish farmers sometimes use duckweed as a natural food source for their fish.