blood group
noun
: one of the classes (such as those designated A, B, AB, or O) into which individuals or their blood can be separated on the basis of the presence or absence of specific antigens in the blood
called also blood type
Example Sentences
Recent Examples on the Web Every day, countless calls on social media ask for plasma from a particular blood group, often for critical patients in the ICU. 
Manavi Kapur, Quartz, 11 May 2021 Protesters in Myanmar are learning from those in Hong Kong to carry gas masks, medical kits and umbrellas at demonstrations or to write blood group types on their arms in case they are hospitalized. NBC News, 7 Apr. 2021 While someone is more likely to find a perfect match based on blood group and tissue type, race and ethnicity doesn't necessarily play a role in the transplantation process — transplants are done across ethnic lines every day. Holly V. Hays, The Indianapolis Star, 14 Aug. 2020 Another study, of more than 2,000 people in China last March, also found that blood group A had a significantly higher risk of coronavirus infection. Peter Fimrite, SFChronicle.com, 9 July 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 On page seven of the study, a trial with 285 patients from Shenzhen did not show blood group A to be more susceptible. Molly Stellino, USA TODAY, 1 Apr. 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 See More
Manavi Kapur, Quartz, 11 May 2021 Protesters in Myanmar are learning from those in Hong Kong to carry gas masks, medical kits and umbrellas at demonstrations or to write blood group types on their arms in case they are hospitalized. NBC News, 7 Apr. 2021 While someone is more likely to find a perfect match based on blood group and tissue type, race and ethnicity doesn't necessarily play a role in the transplantation process — transplants are done across ethnic lines every day. Holly V. Hays, The Indianapolis Star, 14 Aug. 2020 Another study, of more than 2,000 people in China last March, also found that blood group A had a significantly higher risk of coronavirus infection. Peter Fimrite, SFChronicle.com, 9 July 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 On page seven of the study, a trial with 285 patients from Shenzhen did not show blood group A to be more susceptible. Molly Stellino, USA TODAY, 1 Apr. 2020 Nurses neglected to tell them O-negative blood can be given to patients of any blood group. Max Bearak, BostonGlobe.com, 1 Feb. 2020 See More Word History
First Known Use
1916, in the meaning defined above
Medical Definition
blood group
noun
: one of the classes (as A, B, AB, or O) into which individual vertebrates and especially human beings or their blood can be separated on the basis of the presence or absence of specific antigens in the blood
called also blood type