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allograft vs. xenograft

[al-uh-graft, -grahft] / ˈæl əˌgræft, -ˌgrɑft /

noun

Surgery.
  1. a tissue or organ obtained from one member of a species and grafted to a genetically dissimilar member of the same species.

[zen-uh-graft, -grahft, zee-nuh-] / ˈzɛn əˌgræft, -ˌgrɑft, ˈzi nə- /

noun

Surgery.
  1. a graft obtained from a member of one species and transplanted to a member of another species.