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English definition of “donor”

donor

noun [C] uk   /ˈdəʊ.nər/ us    /ˈdoʊ.nɚ/
C2 a person who gives some of their blood or a part of their body to help someone who is ill: a blood donor a kidney donorPeople who receive medical treatment C2 a person who gives money or goods to an organization: Thanks to a large gift from an anonymous donor, the charity was able to continue its work.People who receive medical treatment
(Definition of donor from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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