홍역, 유행성 이하선염, 풍진을 한꺼번에 예방하기 위해 접종하는 혼합 백신.
A combination vaccine that provides protection against measles, mumps, and rubella.
예문:
"The MMR vaccine is highly effective at preventing three different viral diseases."
"Parents should ensure their children receive the MMR shot on schedule."
"A second dose of the MMR vaccine is necessary for full protection."