manatee Manasquan • Manatidae · · · Info · Definitions · Synonyms · Characters · · manatee · · Text Latin · · Script 7 · · Length Definitions · · · (noun) sirenian mammal of tropical coastal waters of America; the flat tail is rounded. Synonyms: Trichechus manatus. · · Noun Definition 1 Synonyms · · · trichechus manatus · · Synonym 1 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 m latin small letter m U+006D n latin small letter n U+006E t latin small letter t U+0074