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| eu·ther·i·an [ yoo three ən ] (plural eu·the·ri·ans) |
noun |
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| Definition: |
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placental mammal: a mammal whose young develop within the womb surrounded by a placenta. Subclass Eutheria.
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| [Late 19th century. < modern Latin Eutheria< Greek thērion "wild animal"] |
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 eu·ther·i·an adjective |
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