blood group

Từ điển WordNet v3.1 - WordNet Dictionary

noun

human blood cells (usually just the red blood cells) that have the same antigens
• Syn:
blood type
• Hypernyms:
blood
• Hyponyms:
A, type A, group A, B, type B,
group B, AB, type AB, group AB, O, type O,
group O, Rh-positive blood type, Rh positive, Rh-negative blood type, Rh-negative blood, Rh negative