water beetle


Definition of water beetle

: any of numerous oval flattened aquatic beetles (such as a diving beetle or whirligig beetle) that swim by means of their fringed hind legs which act together as oars

First Known Use of water beetle

circa 1668, in the meaning defined above

Keep scrolling for more

Learn More about water beetle

Share water beetle

Statistics for water beetle

Look-up Popularity

Time Traveler for water beetle

The first known use of water beetle was circa 1668

See more words from the same year

More from Merriam-Webster on water beetle

Britannica.com: Encyclopedia article about water beetle

Comments on water beetle

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


esteemed in general opinion

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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!