type a

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Thân thiện
Definition
  1. Noun:
    • A blood group classification: "Type A" refers to one of the major human blood groups in the ABO system. It is characterized by red blood cells that have the A antigen on their surface and plasma that contains anti-B antibodies.
Usage
  • "Type A" is used as a compound noun to specify a blood type. It is typically written with a capital 'A'.
  • It is commonly used in medical, healthcare, and donation contexts.
  • Example:
  • Example:
Advanced Usage
  • "Type A positive" (A+) and "Type A negative" (A-) are more specific classifications that include the Rhesus (Rh) factor.
    • Example: She discovered she was type A negative, a relatively rare blood type.
Variants and Related Words
  • Blood type: The general term for classifications like A, B, AB, and O.
  • ABO system: The classification system that includes type A, B, AB, and O blood groups.
  • Antigen: A substance, like the A antigen, that can trigger an immune response.
  • Antibody: A protein produced by the body, like anti-B antibodies in type A individuals, to fight specific antigens.
Synonyms
  • Blood group A: A formal synonym.
  • Group A: A common shorthand in medical contexts.
Notes
  • "Type A" should not be confused with the informal personality descriptor "Type A personality," which refers to a competitive, driven behavioral pattern. The context usually makes the meaning clear.
  • In genetics, it can refer to the alleles (IA) that determine this blood type.
Noun
  1. the blood group whose red cells carry the A antigen

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