Definition of


  1. (noun, artifact) immunogen consisting of a suspension of weakened or dead pathogenic cells injected in order to stimulate the production of antibodies

via WordNet, Princeton University

Synonyms of Vaccine


Origin of the word Vaccine

  1. "matter used in vaccination," 1846, from L. vaccina, fem. of vaccinus "pertaining to a cow" (see vaccination). more

via Online Etymology Dictionary, ©2001 Douglas Harper

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