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Want to find out what does the word vaccine mean? We gathered all the possible definitions of the word vaccine on our website. Our definition dictionary is updated all the time with new definitions and is ready to help you.


Part of speech: Adjective

Pertaining to, or obtained from, cows or cowpox.

Part of speech: Noun

Virus, or poison, obtained from cows affected with a disease called cowpox, or vaccinia, and used to prevent smallpox; loosely, any substance used for inoculation against disease.

Usage examples "vaccine":