Duckweed
(noun)
A small, floating aquatic plant that forms dense green mats on the surface of still or slow-moving water bodies.
Origin:
From middle english dokeweede, from duck + weed.
Examples:
- Duckweed is often considered a nuisance by farmers and landowners due to its ability to clog irrigation ditches.
- Duckweed provides a habitat for many species of aquatic animals.
- The pond was covered in a thick layer of duckweed, making it difficult to see the fish below.
- Duckweed is a type of flowering plant and is a good source of nutrition for ducks and other waterfowl.
- The scientists are studying the potential use of duckweed as a source of biofuel and animal feed.