an·​ti·​se·​rum | \ ˈan-tē-ˌsir-əm How to pronounce antiserum (audio) , ˈan-ˌtī- How to pronounce antiserum (audio) , -ˌser- \

Definition of antiserum

: a serum containing antibodies

Examples of antiserum in a Sentence

Recent Examples on the Web There are hardly any producers of antiserum left, however. Kai Kupferschmidt, Science | AAAS, "Scientists find way to make diphtheria treatment without injecting horses with toxin," 17 Jan. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antiserum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of antiserum

1895, in the meaning defined above

History and Etymology for antiserum

International Scientific Vocabulary

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Time Traveler for antiserum

Time Traveler

The first known use of antiserum was in 1895

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Statistics for antiserum

Last Updated

22 Jan 2020

Cite this Entry

“Antiserum.” The Dictionary, Merriam-Webster Inc., Accessed 28 January 2020.

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More Definitions for antiserum


an·​ti·​se·​rum | \ ˈant-i-ˌsir-əm How to pronounce antiserum (audio) , ˈan-ˌtī- How to pronounce antiserum (audio) , -ˌser- \

Medical Definition of antiserum

: a serum containing antibodies

called also immune serum

More from Merriam-Webster on antiserum Encyclopedia article about antiserum

Comments on antiserum

What made you want to look up antiserum? Please tell us where you read or heard it (including the quote, if possible).


showing steady, earnest care and effort

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