Hypericum \Hy*per"i*cum\, n. [L., fr. Gr. ?, ?; ? under, among + ?, ?, heath, heather.] (Bot.) A genus of plants, generally with dotted leaves and yellow flowers; -- called also {St. John's-wort}.
Hypericum n : large almost cosmopolitan genus of evergreen or deciduous shrubs and herbs with often showy yellow flowers; cosmopolitan except tropical lowlands and arctic or high altitudes and desert regions [syn: {genus Hypericum}]