bacterin

noun

bac·​ter·​in ˈbak-tə-rən How to pronounce bacterin (audio)
: a suspension of killed or attenuated bacteria for use as a vaccine

Word History

First Known Use

1897, in the meaning defined above

Time Traveler
The first known use of bacterin was in 1897

Cite this Entry

“Bacterin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bacterin. Accessed 5 Mar. 2025.

Medical Definition

bacterin

noun
bac·​ter·​in ˈbak-tə-rən How to pronounce bacterin (audio)
: a suspension of killed or attenuated bacteria for use as a vaccine
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