SIRENIAN /sʌɪˈɹiːnɪən/ Scrabble 8 Words With Friends 10 Definition noun any of two families of large herbivorous aquatic mammals with paddle-shaped tails and flipper-like forelimbs and no hind limbs. — synonyms: sea_cow, sirenian_mammal See all 121 words you can make from SIRENIAN → 8-letter words Words starting with S Words ending with N ← Unscramble different letters