Main Entry:

si·re·ni·an

Pronunciation:

\sī-ˈrē-nē-ən\

Function:

noun

Etymology:

New Latin Sirenia, from Latin siren

Date:

1883

: any of an order (Sirenia) of aquatic herbivorous mammals (as a manatee, dugong, or Steller's sea cow) that have large forelimbs resembling paddles, no hind limbs, and a flattened tail resembling a fin

— sirenian adjective