noun
- an herbivorous, aquatic mammal, Dugong dugon, of the Red Sea and Indian Ocean, having a barrel-shaped body, flipperlike forelimbs, no hind limbs, and a triangular tail: widespread but rare.
noun
- a whalelike sirenian mammal, Dugong dugon, occurring in shallow tropical waters from E Africa to Australia: family Dugongidae
1800, from Malay duyung, which is dugung in the Philippines.