lipovaccine

noun
li·​po·​vac·​cine | \ ˌlip-ō-vak-ˈsēn How to pronounce lipovaccine (audio) , ˌlī-pō- How to pronounce lipovaccine (audio) , -ˈvak-ˌsēn\

Medical Definition of lipovaccine

: a vaccine whose fluid medium is an oil