HIBISCUS Meaning of HIBISCUS in English hi ‧ bis ‧ cus /haɪˈbɪskəs/ BrE AmE noun [uncountable and countable] [ Date: 1700-1800 ; Language: Latin ] a tropical plant with large brightly coloured flowers Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012