Definition of “blood donor” - English Dictionary

british dictionary

“blood donor” in British English

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blood donornoun [ C ]

uk /ˈblʌd ˌdəʊ.nər/ us /ˈblʌd ˌdoʊ.nɚ/

someone who regularly gives some of their blood for people who need it because they are sick

(Definition of “blood donor” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)