MMR vaccine - definition and synonyms

noun [singular] 

Your browser doesn’t support HTML5 audio

/ˌem em ˈɑː(r) ˌvæksiːn/

or MMR 

Your browser doesn’t support HTML5 audio

  1. a drug given to young children by injection to protect them against measles, mumps, and rubella. Some parents are worried about their children being given the MMR vaccine because they believe it may cause autism.