Definition of juniper
1 a
: any of numerous shrubs or trees (genus Juniperus) of the cypress family with leaves resembling needles or scales and female cones usually resembling berries
b
: the berrylike cone or fruit of a juniper;
especially
: the bluish one of a common juniper (J. communis) which is used to flavor foods and from which is obtained an acrid essential oil used especially as a flavoring in gin and liqueurs — called also
juniper berry
2
: any of several coniferous trees resembling true junipers
