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blood donor

British  

noun

  1. a person who gives his or her blood to be used for transfusion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The Korean Red Cross, which has long struggled with a shortage of blood donors, even began offering the cookies instead of its usual sugary snacks.

From Barron's

That year, the brand partnered with the American Red Cross to create a graphic tee as a gift for blood donors.

From Los Angeles Times

However, in rare cases, blood donors who are in the early stages of HIV infection may go undetected during initial screenings but test positive later, he adds.

From BBC

This December, the Academy Award nominee and longtime blood donor will give one of his kidneys to a complete stranger, he said Thursday on the “Today” show.

From Los Angeles Times

In the new study, published in Cell Reports Physical Science, the Trinity researchers worked with macrophages taken from healthy blood donors through the Irish Blood Transfusion Board at St James's Hospital.

From Science Daily