\Du*gong"\, n. [Malayan d?y?ng, or Javan. duyung.]
(Zo["o]l.)
An aquatic herbivorous mammal ({Halicore dugong}), of the
order Sirenia, allied to the manatee, but with a bilobed
tail. It inhabits the Red Sea, Indian Ocean, East Indies, and
Australia. [Written also {duyong}.]