Citrus sinensis n 1: probably native to southern China; widely cultivated as source of table and juice oranges [syn: {sweet orange}, {sweet orange tree}, {Citrus sinensis}]
Citroncirus \Citroncirus\ n. a cross between {Citrus sinensis} and {Poncirus trifoliata}. Syn: genus {Citroncirus}. [WordNet 1.5]