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English to English adjective
| 1 |
pertaining to or having or occurring by means of a placenta |  | Example: all mammals except monotremes and marsupials are placental mammals
source: wordnet30
| 2 |
Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal. | | source: webster1913
noun
| 3 |
mammals having a placenta; all mammals except monotremes and marsupials | | source: wordnet30
| 4 |
One of the Placentalia. | | source: webster1913
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