✨📕 The NEWThe NEW Collegiate Dictionary, 12th Edition Over 5,000 words added — Buy Now! Collegiate DictionaryBuy Now!

isograft

noun

iso·​graft ˈī-sə-ˌgraft How to pronounce isograft (audio)
: a homograft between genetically identical or nearly identical individuals
isograft transitive verb

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of isograft was in 1958

Browse Nearby Words

Cite this Entry

“Isograft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/isograft. Accessed 30 Nov. 2025.

Medical Definition

isograft

noun
iso·​graft ˈī-sə-ˌgraft How to pronounce isograft (audio)
: a homograft between genetically identical or nearly identical individuals
isograft transitive verb

More from Merriam-Webster on isograft

Love words? Need even more definitions?

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