'Sirenian' definitions:
Definition of 'sirenian'
(from WordNet)
noun
Any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs [syn: sea cow, sirenian mammal, sirenian]
Definition of 'Sirenian'
From: GCIDE
- Sirenian \Si*re"ni*an\, n. (Zool.) Any species of Sirenia. [1913 Webster]