wa·​ter·​weed | \ ˈwȯ-tər-ˌwēd How to pronounce waterweed (audio) , ˈwä-\

Definition of waterweed

: any of various floating or submerged aquatic plants (such as elodea) having usually inconspicuous flowers

Examples of waterweed in a Sentence

Recent Examples on the Web

Another major lake, Ulsoor, is choked with garbage and construction waste and is gasping under a blanket of thick waterweeds. Washington Post, "Water mismanagement leaves India’s Silicon Valley parched," 16 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'waterweed.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of waterweed

13th century, in the meaning defined above

Keep scrolling for more

Learn More about waterweed

Statistics for waterweed

Look-up Popularity

Time Traveler for waterweed

The first known use of waterweed was in the 13th century

See more words from the same century

More from Merriam-Webster on waterweed

Rhyming Dictionary: Words that rhyme with waterweed

Britannica.com: Encyclopedia article about waterweed

Comments on waterweed

What made you want to look up waterweed? Please tell us where you read or heard it (including the quote, if possible).


something desired as essential

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
Spell It

Can you spell these 10 commonly misspelled words?

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!