watermeal

American  

[waw-ter-meel, wot-er-] / ˈwɔ tərˌmil, ˈwɒt ər- /

noun

1. any of several tiny floating aquatic plants of the genus Wolffia.

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Etymology

Origin of watermeal

water + meal ²

Example Sentences

Unfortunately, two months after moving in, the once pristine pond was covered in watermeal, a tiny plant that can quickly coat the surface of a pond with a soft, green vegetation.

From National Geographic

Duckweed and watermeal are amongst some of the weeds that thrive in nutrient-rich bodies of water such as farm ponds, but they can slowly choke the life out of those ponds.

From National Geographic

Duckweed and watermeal are just two types of weeds that most pond owners seek to control with chemicals such as diquat.

From National Geographic

Duckweed — so called because ducks eat it — is a flowering aquatic plant that floats on or just below the surface of still bodies of water, while watermeal is the world’s smallest flowering plant.

From National Geographic