Found 2 items, similar to duckweed.
English → English (WordNet) Definition: duckweed duckweed n : any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds
English → English (gcide) Definition: Duckweed Duckweed \Duck"weed`\, n. (Bot.) A genus (Lemna) of small plants, seen floating in great quantity on the surface of stagnant pools fresh water, and supposed to furnish food for ducks; -- called also duckmeat. [1913 Webster]