vac·cin·i·um | \ vakˈsinēəm \

Definition of vaccinium 

1 capitalized : a large widely distributed genus of shrubs (family Ericaceae) including the blueberries and cranberries and distinguished by the 4- to 5-celled ovary and the usually many-seeded baccate fruit — compare oxycoccus

2 plural -s : any plant of the genus Vaccinium

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History and Etymology for vaccinium

New Latin, from Latin, blueberry, whortleberry, probably of non-Indo-European origin; akin to the source of Greek hyakinthos hyacinth

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the setting in which something occurs

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