: a graft of tissue taken from a donor of one species and grafted into a recipient of another species

called also heterograft

compare homograft

Examples of xenograft in a Sentence

Recent Examples on the Web
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The biotech company is one of a handful racing to develop xenografts, as these interspecies transplants are called. O. Rose Broderick, STAT, 4 Sep. 2026

Word History

First Known Use

1961, in the meaning defined above

Time Traveler
The first known use of xenograft was in 1961

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Cite this Entry

“Xenograft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/xenograft. Accessed 17 Sep. 2026.

Medical Definition

: a graft of tissue taken from a donor of one species and grafted into a recipient of another species

called also heterograft, heterotransplant, xenotransplant

compare homograft
xenograft transitive verb
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