Duckweed

n.

1.

(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.

Noun

1.

duckweed - any small or minute aquatic plant of the family Lemnaceae that float on or near the surface of shallow ponds

aquatic plant, bogmat, common duckweed, duckweed family, family Lemnaceae, great duckweed, hydrophyte, hydrophytic plant, Lemna minor, Lemna trisulca, Lemnaceae, lesser duckweed, mud midget, Spirodela polyrrhiza, star-duckweed, water flaxseed, water plant, watermeal, Wolffiella gladiata