cymbidium Syllabification: (cym·bid·i·um)Pronunciation: /ˌsimˈbidēəm/Definition of cymbidium noun (plural cymbidiums) a tropical orchid with long, narrow leaves and arching stems bearing several flowers, growing chiefly as an epiphyte from Asia to Australasia and widely cultivated for boutonnières. Genus Cymbidium, family Orchidaceae Origin:modern Latin, from Greek kumbē 'cup'cymbidium in other Oxford dictionaries Definition of cymbidium in the British & World English dictionary