Definition of antiserum in English:

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Pronunciation: /ˈan(t)iˌsirəm/

noun (plural antisera /-ˌsi(ə)rə/)

A blood serum containing antibodies against specific antigens, injected to treat or protect against specific diseases.
Example sentences
  • Newborn babies at risk of severe chickenpox can also be given antiserum (serum containing antibodies).
  • Serotyping was done by the set of type specific antisera.
  • In addition, a program to develop countermeasures including vaccines, antisera, and therapeutic agents to protect troops from possible biological attack was begun in 1953.

For editors and proofreaders

Syllabification: an·ti·se·rum

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