Webster’s Revised Unabridged Dictionary · 1913
Dugong
Du·gong′ (dụ·gŏg′), n. [Malayan dūyōng, or Javan. duyung.] (Zoöl.) 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.]