yulan Syllabification: (yu·lan)Pronunciation: /ˈyo͞oˌlan, -lən/Definition of yulan noun a Chinese magnolia with showy white flowers. Magnolia heptapeta, family Magnoliaceae Origin: early 19th century: from Chinese yùlán, from yù 'gem' + lán 'plant'yulan in other Oxford dictionaries Definition of yulan in the British & World English dictionary