noun, plural an·ti·se·rums, an·ti·se·ra [an-tuh-seer-uh]. /ˈæn təˌsɪər ə/.
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Example sentences from the Web for antiserum
Numerals represent relative amounts of reaction between antigens and antisera.
All antisera were produced in rabbits (laboratory stock of Oryctolagus cuniculus).
Only three antisera were produced against formolized antigens, all others being produced against "native" extracts.