mer·​co·​cre·​sols | \ ˌmər-kō-ˈkrē-ˌsȯlz How to pronounce mercocresols (audio) , -ˌsōlz How to pronounce mercocresols (audio) \

Medical Definition of mercocresols

: a mixture consisting of equal parts of organic mercury and cresol derivatives that is used as a topical antiseptic