semigroup

noun
semi·​group | \ ˈse-mē-ˌgrüp How to pronounce semigroup (audio) , ˈse-ˌmī-, -mi- \

Definition of semigroup

: a mathematical set that is closed under an associative binary operation

First Known Use of semigroup

1904, in the meaning defined above

Keep scrolling for more

Learn More About semigroup

Time Traveler for semigroup

Time Traveler

The first known use of semigroup was in 1904

See more words from the same year

Dictionary Entries Near semigroup

semigregarious

semigroup

semihard

See More Nearby Entries 

Statistics for semigroup

Cite this Entry

“Semigroup.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semigroup. Accessed 16 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on semigroup

Britannica.com: Encyclopedia article about semigroup

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

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

TAKE THE QUIZ
Love words? Need even more definitions?

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