hinoki Syllabification: (hi·no·ki)Pronunciation: /hiˈnōkē/Definition of hinoki noun 1 (also hinoki cypress) a tall slow-growing tree native to Japan that has bright green leaves and yields a valuable timber. Chamaecyparis obtusa, family Cupressaceae Origin: early 18th century: from Japanesehinoki in other Oxford dictionaries Definition of hinoki in the British & World English dictionary