sirenian Syllabification: (si·re·ni·an)Pronunciation: /sīˈrēnēən/ ZoologyDefinition of sirenian noun a large aquatic plant-eating mammal of the order Sirenia, such as a manatee or dugong. adjective relating to or denoting sirenians. sirenian in other Oxford dictionaries Definition of sirenian in the British & World English dictionary
