woolly bear


Definition of woolly bear

: any of various rather large very hairy moth caterpillars especially : one of a tiger moth

Examples of woolly bear in a Sentence

Recent Examples on the Web

In creatures such as insects, the ability to self-medicate is almost certainly innate; woolly bear caterpillars infected with parasitic flies seek out and eat plant substances that are toxic to the flies. Doug Main, Scientific American, "Orangutans Use Plant Extracts to Treat Pain," 6 Apr. 2018

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

First Known Use of woolly bear

circa 1841, in the meaning defined above

Keep scrolling for more

Learn More about woolly bear

Statistics for woolly bear

Look-up Popularity

Time Traveler for woolly bear

The first known use of woolly bear was circa 1841

See more words from the same year

Comments on woolly bear

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


concealment of treason or felony

Get Word of the Day daily email!

Test Your Vocabulary

The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

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!