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From Biology-Online Dictionary | Biology-Online Dictionary
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A substance that causes hemagglutination (i.e. the agglutination of red blood cells).


Hemagglutinins may be in the form of antibodies, viral capsid proteins, or certain plant lectins (e.g. PHA). Examples of hemagglutinin are Influenza hemagglutinin and Measles hemagglutinin.

Related forms: hemagglutination (noun), hemagglutinate (verb).


  • hemoagglutinin
  • haemagglutinin (British)
  • haemoagglutinin (British)

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