: a homomorphism that maps a mathematical set into itself compare isomorphism

Word History

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of endomorphism was in 1909

Browse Nearby Words

Cite this Entry

“Endomorphism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endomorphism. Accessed 7 Jul. 2026.

Love words? Need even more definitions?

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