Definition of dugong
: a sirenian mammal (Dugong dugon of the family Dugongidae) of a monotypic genus that has a bilobed tail and in the male upper incisors altered into short tusks and that inhabits warm coastal waters chiefly of southern Asia, Australia, and northeastern Africa
Origin of dugong
New Latin, genus name, probably from dugung in Cebuano or a related Austronesian language of the central Philippines
First Known Use: 1800
Learn More about dugong
Britannica.com: Encyclopedia article about "dugong"
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