eutherian mammal eutherian • euthermic · · · Info · Definitions · Synonyms · Characters · · eutherian mammal · · Text Common · · Latin · · Scripts 16 · · Length 7 · · Syllables Definitions · · · (noun) mammals having a placenta; all mammals except monotremes and marsupials. Synonyms: placental, placental mammal, eutherian, eutherian mammal. · · Noun Definition 1 Synonyms · · · placental · · Synonym 1 placental mammal · · Synonym 2 eutherian · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075