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/saɪˈɹiːniən/ · noun
(zoology) A marine mammal of the order Sirenia, including the manatee and dugong, characterized by large forelimbs with no hind limbs..
The cetaceans (whales and dolphins) together with the sirenians (sea cows and manatees) are the sea mammals best-adapted to the seas of today, but it is the cetaceans that have most engaged the attention of mankind as both prey and fellow sentient being.
Use sirenian when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Sirenian means (zoology) A marine mammal of the order Sirenia, including the manatee and dugong, characterized by large forelimbs with no hind limbs..
Common synonyms include sea cow, sirenian mammal.
The opposite depends on the specific sense.
The cetaceans (whales and dolphins) together with the sirenians (sea cows and manatees) are the sea mammals best-adapted to the seas of today, but it is the cetaceans that have most engaged the attention of mankind as both prey and fellow sentient being.
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