varioloid

noun
va·​ri·​o·​loid | \ ˈvar-ē-ə-ˌlȯid How to pronounce varioloid (audio) , və-ˈrī-ə-ˌlȯid How to pronounce varioloid (audio) \

Medical Definition of varioloid

: a modified mild form of smallpox occurring in persons who have been vaccinated or who have had smallpox