Vaccinal a. : Of or pertaining to vaccinia or vaccination.

Example:


Taxonomy
Merriam-Webster Online Dictionary, Dictionary, webster, vak, vaccine, Word Games, Webster Online Dictionary with audio pronunciations, thesaurus, glossary, english, language, ESL, adjective, vaccination, efficacy, Unabridged Dictionary, Search Boxes, Open Dictionary.

Defination from the web:
vaccinal from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... of or relating to vaccine or vaccination <a vaccine with vaccinal efficacy of 95 percent> Learn more about "vaccinal" ...