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type B

type B

5 4.4
A blood group with B marks on red cells and no A marks
  • noun
  • /taɪp bi/
  • Specialized
translation icon : tipo B
  • Tympanograms were flat (type B) in all patients.
  • type B blood
  • type B positive

Examples

  • Jack's blood type is B positive, which is important for blood transfusions.

  • On average, the Type Bs outlived the Type As.

    Blog text (27)
  • As usual, the viruses in this year's vaccine include two type A viruses and one type B.

    Academic text (2012)
  • Born on Jan. 25, 1955, blood type B, Iwatani was working as a Namco Incubation Center Conductor at the time of the interview in 2003.

    Blog text (27)
  • The sensitivity of the rapid test kit compared with RT-PCR was 90% for type A but lower (80%) for type B (online Technical Appendix Table 3).

    Academic text (2012)
  • Peter indicates that ABs are a conglomeration of type A and type B blood types, and consequently their diets should reflect a mixture of the recommendations he makes for these blood groups.

    Blog text (31)
  • The vaccine that protects against Haemophilus influenzae type B (Hib) is a conjugate vaccine.

    Academic text (2015)
  • Before 1984, a bacterium called Hemophilus influenza type B (HIB) would cause meningitis in 15,000 children each year, leaving many with permanent brain damage.

    Blog text (4)
  • Doctors can determine your type B blood group through a simple blood test.

  • If you receive a transfusion, it is crucial to match your blood type, such as type B, with that of the donor.

Synonyms

B
vstype B
12 3.7

A blood group whose red cells have the B marker

is written as a phrase instead of a single-letter label
group B
vstype B
  • Specialized
1 4.6

A blood type with the B marker on red blood cells

is written as a single-letter label rather than a phrase

Surface Forms

type B singular
type Bs plural

Morphology

type + B

The phrase is directly compositional: 'type' = class/group and 'B' = the B blood-group label, so 'type B' straightforwardly denotes the class of blood with B antigen. This noun+label construction is common across languages and follows a regular, non-idiomatic pattern, so a B1 learner who knows the constituents will readily infer the meaning.

Etymology

The term type B comes from early blood tests that used the letters A and B to name different blood kinds. So type B means blood with the 'B' marker and not the 'A' marker.