[ sahy-ree-nee-uh n ]
/ saɪˈri ni ən /


an aquatic, herbivorous mammal of the order Sirenia, including the manatee and dugong.

Origin of sirenian

1880–85; < New Latin Sireni(a) (see siren, -ia) + -an Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sirenian

  • Why was it so difficult to abandon the Sirenian creakings of this chair?

    Sinister Street, vol. 2|Compton Mackenzie
  • Theirs should be sirenian moons and dawns, and life would be this dream's perfect fulfilment.

    Guy and Pauline|Compton Mackenzie

British Dictionary definitions for sirenian


/ (saɪˈriːnɪən) /


of, relating to, or belonging to the Sirenia, an order of aquatic herbivorous placental mammals having forelimbs modified as paddles, no hind limbs, and a horizontally flattened tail: contains only the dugong and manatees


any animal belonging to the order Sirenia; a sea cow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012