sar·​co·​mere | \ ˈsär-kə-ˌmir How to pronounce sarcomere (audio) \

Definition of sarcomere

: any of the repeating structural units of striated muscle fibrils

Keep scrolling for more

Examples of sarcomere in a Sentence

Recent Examples on the Web The basic functional units of muscle tissue are called sarcomeres. Alexa Tucker, SELF, "Everything You Need to Know About Whether You Should Actually Bother Stretching," 19 Aug. 2018

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

First Known Use of sarcomere

1891, in the meaning defined above

History and Etymology for sarcomere

sarco- + -mere

Keep scrolling for more

Learn More about sarcomere

Statistics for sarcomere

Time Traveler for sarcomere

The first known use of sarcomere was in 1891

See more words from the same year

Keep scrolling for more

More Definitions for sarcomere


sar·​co·​mere | \ ˈsär-kə-ˌmi(ə)r How to pronounce sarcomere (audio) \

Medical Definition of sarcomere

: any of the repeating structural units of striated muscle fibrils

Other Words from sarcomere

sarcomeric \ ˌsär-​kə-​ˈmer-​ik How to pronounce sarcomeric (audio) \ adjective

More from Merriam-Webster on sarcomere Encyclopedia article about sarcomere

Comments on sarcomere

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


something of little or no value

Get Word of the Day daily email!

Test Your Vocabulary

Pass the Little Ribbons: A Pasta Word Quiz

  • rotelle pasta
  • Match the pasta to its meaning in English: Rotelle
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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!