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Sirenia

plural noun
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Si·​re·​nia | \ sīˈrēnēə \

Definition of Sirenia

: an order of large aquatic herbivorous mammals including the manatee, dugong, Steller's sea cow, and several fossil forms that have the tail horizontally flattened and expanded into a broad rounded or bilobed fin, the hind limbs rudimentary or wanting and the front ones paddle-shaped, and jaws with horny plates on the front part and usually numerous flat-crowned molar teeth

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History and Etymology for Sirenia

New Latin, from Latin siren + New Latin -ia

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Cite this Entry

“Sirenia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Sirenia. Accessed 16 Jun. 2021.

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