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blood type

1 ENTRIES FOUND:
blood type noun
plural blood types
blood type
noun
plural blood types
Britannica Dictionary definition of BLOOD TYPE
[count] chiefly US
: one of the eight different blood categories into which humans are separated
◊ These categories of blood are labeled A, B, AB, or O and each of these is either Rh-positive or Rh-negative.
called also blood group