universal donor

1. 1.

   a person whose type O Rh-negative blood may be safely transfused into persons with other blood types

   Broaderblood donor

Questions about universal donor

What does universal donor mean?

universal donor means "a person whose type O Rh-negative blood may be safely transfused into persons with other blood types".

Is universal donor a common word?

universal donor is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.