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Definition of duckweed

duckweed

/ˈdʌk.wiːd/
duck · weed
Plural:duckweeds
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duckweed Lexical Profile

duckweed Game Scores & Validity

• noun

1

Any of various tiny, free-floating aquatic plants of the subfamily Lemnoideae, lacking distinct stems and true leaves, which typically grow rapidly to form dense green mats on the surface of slow-moving or stagnant fresh water globally.

Example

"The ecologist noted that the nutrient-rich pond was completely choked by a thick carpet of duckweed, blocking sunlight from reaching the submerged vegetation below."

• Nearby Words

dubrovnik
duck
duckling
duckweed
dudhsagar
duero
dugite

Word Origin & Etymology

Coined in the 16th century from 'duck' + 'weed', so named because it serves as a common food source for ducks and other aquatic birds.

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Duckweed. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/duckweed
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