blood group
From Longman Dictionary of Contemporary EnglishRelated topics: Human, Hospitalblood groupˈblood group noun [countable] especially British EnglishHBHMH one of the classes into which human blood can be separated, including A, B, AB, and O SYN blood type American EnglishExamples from the Corpusblood group• The first thing he saw was her blood group.• Is blood group an inherited characteristic?• And three of them needed A-Negative, Faye's blood group.• One test will determine your blood group, and another will reveal your Rhesus factor.